A system for recovering and treating condensate water from an offshore platform

Abstract

The application discloses a kind of offshore platform condensate water recovery processing system, it is related to liquid recycling technical field, including intelligent control module, recovery cabinet, anti-fluctuation precipitation module, sewage collection module, primary filter element, secondary filter element and water purification tank.The application is set by suspension plate, sliding sleeve, center shaft and liquid taking tank, so that liquid taking tank can automatically lift with water level change in water purification chamber, and always keep in the stable liquid taking area below liquid surface, avoid floating foam, oil stain and floating light impurities are sucked into filter module, to reduce subsequent filtration load.Multiple stable flow structure is formed by upper suspension plate, middle water purification cylinder and lower conical partition, and overflow hole on suspension plate is used to release liquid surface fluctuation energy, so that anti-fluctuation settling module can effectively weaken liquid surface fluctuation, isolate water purification chamber and settling chamber and limit bottom sediment impurities rolling under the condition of shaking caused by sea wind and sea wave, to improve the stability of settling and liquid taking under the influence of bad environment.

Description

Technical Field

[0001] This invention relates to the field of liquid recycling technology, specifically a condensate recovery and treatment system for offshore platforms. Background Technology

[0002] The offshore platform condensate recovery and treatment system is a liquid recycling system used to collect, purify, and reuse condensate generated during the operation of offshore power platforms. Due to the large size of the large power equipment operating systems on offshore platforms, air conditioning, dehumidification, large units, and related process equipment continuously generate a certain amount of condensate during operation. Direct discharge of this condensate would not only waste freshwater resources but also increase the burden of wastewater treatment on the platform.

[0003] During the recycling and treatment process of condensate from offshore platforms, adverse external environmental factors such as sea winds and waves can cause surface fluctuations and water disturbances in the condensate entering the treatment system. This can re-stir up settled impurities, leading to instability in the settling process. If the condensate is directly delivered to the filtration module when settling is insufficient or the sampling location is unstable, a large amount of impurities will concentrate in the filter element, increasing the filtration load, easily causing filter element blockage, reduced filtration efficiency, and increased replacement frequency. Summary of the Invention

[0004] The purpose of this invention is to provide a condensate recovery and treatment system for offshore platforms to solve the problem of the lack of stable sedimentation and filtration methods for condensate in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a condensate recovery and treatment system for offshore platforms, comprising a recovery cabinet and an anti-wave sedimentation module, wherein an intelligent control module is installed inside the recovery cabinet, a filtration module is installed inside the recovery cabinet, a clean water tank and a wastewater collection module are respectively installed inside the recovery cabinet, and the filtration module is connected to the clean water tank.

[0006] The anti-wave sedimentation module includes a sedimentation cylinder with a sludge discharge plate installed at the bottom. The sludge discharge plate is connected to the sewage collection module through a pipe. A spiral buffer assembly is installed on the sedimentation cylinder. A central shaft is installed on the sludge discharge plate. From bottom to top, a swing cleaner, a conical baffle, and a water purification cylinder are installed on the central shaft. The bottom of the swing cleaner is close to the sludge discharge plate. A suspended liquid extractor is movably installed on the central shaft. The suspended liquid extractor is connected to the filter module through a pipe. An annular cavity is formed between the water purification cylinder and the sedimentation cylinder.

[0007] The intelligent control module controls and regulates the entire treatment system through its built-in control system. The wastewater collection module is a wastewater tank. The clean water tank is connected to external water-using terminals such as fire-fighting water tanks and domestic water tanks via pipes.

[0008] Furthermore, the spiral buffer assembly includes a spiral plate, which is installed at the top of the settling cylinder. An outer cylinder is installed on the spiral plate. The spiral plate, the outer cylinder, and the clean water cylinder constitute a spiral deceleration channel. An inlet is opened at the top of the spiral deceleration channel, and an outlet is opened at the bottom of the spiral deceleration channel. An upper baffle is installed on the spiral plate near the outlet, and a lower baffle is installed on the spiral plate near the outlet.

[0009] The inlet is located on the spiral plate, and the outlet is located on the settling tank. The inlet is connected to an external condensate recovery pipe. The spiral deceleration channel is a gently sloping spiral channel, and the surface of the channel is made of a high-friction coefficient material to relatively slow down the water flow velocity through friction.

[0010] An external condensate recovery pipe introduces condensate from the inlet into the spiral deceleration channel, allowing the water to flow slowly into the annular cavity after passing through a gentle passage. This prevents the water from falling directly into the annular cavity, which could impact the existing condensate and cause sediment to churn, affecting sedimentation efficiency. The condensate then flows from the annular cavity into the settling chamber. Impurities in the condensate settle due to gravity within the settling chamber. Upon contact with the conical baffle, the settled impurities slide down the drain slope and through the settling gaps into the collection chamber.

[0011] Meanwhile, the settled water enters the purification chamber through the purification inlet, becoming settled water; the settled water then enters the liquid collection tank through the liquid inlet gap. The control system activates the water pump, which extracts the settled water from the liquid collection tank and delivers it to the filtration module through pipes and the liquid collection pipe. The primary and secondary filter cartridges perform multi-stage filtration on the settled water. The filtered water then enters the purification tank through pipes. The intelligent control module distributes the purified water in the purification tank according to the water demand of the user through an external delivery device, thereby completing the condensate recovery process.

[0012] Furthermore, the swing cleaner includes a one-way rotating component mounted on a central shaft. Several swing rods are mounted on the one-way rotating component, and connecting rods are mounted on the swing rods. A scraper is mounted at the bottom end of the connecting rod, and the scraper is in close contact with the sewage discharge base plate. A counterweight is mounted at one end of the swing rod.

[0013] Furthermore, the one-way rotating component includes a ratchet and a rotating housing. The ratchet is mounted on a central shaft, and the rotating housing is rotatably mounted on the central shaft. Several spring plates are installed inside the rotating housing, and several pawls are rotatably mounted inside the rotating housing. The pawls mesh with the ratchet, one end of each spring plate is close to the pawl, and the swing rod is mounted on the rotating housing.

[0014] When the rotating shell rotates in the permissible direction, the pawl can slide along the ratchet tooth surface and engage with the next tooth groove in sequence, allowing the rotating shell to rotate smoothly; when the rotating shell rotates in the opposite direction, the pawl and the ratchet tooth groove form a stop, preventing the rotating shell from rotating back, so that the rotating shell can only rotate in one direction.

[0015] Furthermore, the suspended liquid extractor includes a sliding sleeve, which is movably mounted on a central shaft. A liquid extraction box is installed at the bottom of the sliding sleeve, and several liquid inlet slits are provided circumferentially on the liquid extraction box. A suspension plate is installed at the top of the sliding sleeve, and a liquid extraction pipe is installed on the liquid extraction box. The bottom of the liquid extraction pipe is connected to the inside of the liquid extraction box, and the top of the liquid extraction pipe passes through the suspension plate and is connected to the primary filter element through a pipe. Several overflow holes are provided on the suspension plate.

[0016] The suspension plate is made of low-density material and can use its own buoyancy to keep the suspended liquid sampler floating in the condensate water. The sliding sleeve slides with the central shaft, so that the suspended liquid sampler can only move up and down along the central shaft, preventing it from swinging significantly when the platform shakes or the liquid surface fluctuates, thereby improving the stability of the liquid sampling position.

[0017] When the condensate level in the water purification chamber changes, the suspension plate can rise and fall synchronously with the liquid level, and drive the liquid collection box to move up and down automatically along the central axis. This allows the liquid collection box to automatically adjust its height according to the liquid level without additional drive, so that the liquid collection box can always be kept in a relatively stable liquid collection area below the liquid surface. This avoids the liquid collection position being too high, which would cause foam, oil or floating light impurities to be sucked into the filter module, reducing the filter load and the risk of clogging.

[0018] The suspension plate has several overflow holes. When the liquid level in the purification chamber fluctuates due to platform shaking, the suspension plate can adhere to the upper part of the liquid surface to form a floating constraint, reducing large fluctuations in the liquid level. At the same time, some condensate can be slowly exchanged up and down through the overflow holes, dispersing and releasing the energy of the liquid surface fluctuations, preventing the suspension plate from being violently lifted or slapped due to water impact. Furthermore, because the suspension plate is guided and limited by the central axis through the sliding sleeve, it can only rise and fall stably along the central axis, making it less prone to tilting and shaking, further improving the stability of the liquid collection position and the liquid level in the purification chamber under shaking conditions.

[0019] The suspension plate is located at the top of the settling tank, the purification tank is located in the middle of the settling tank, and the conical baffle is located at the bottom of the settling tank, forming a multi-stage flow stabilization structure inside the settling tank from top to bottom. When the platform shakes, the upper suspension plate weakens the liquid surface fluctuations, the middle purification tank isolates the settling chamber and the purification chamber, and the lower conical baffle blocks sedimentation impurities. The three work together to reduce the overall sloshing amplitude of condensate in the settling tank, reduce the risk of foam, light impurities, and bottom sediments being rolled and migrated with the water flow, thereby improving the stability of settling and liquid collection under adverse environmental conditions.

[0020] Furthermore, the conical partition is provided with a sewage discharge slope, and the conical partition and the bottom of the water purification cylinder form a settling chamber. The settling chamber is connected to the annular cavity, and the conical partition and the inner wall of the settling cylinder form a settling gap, which is located at the bottom of the settling chamber.

[0021] The bottom of the water purification cylinder is provided with a few clean water holes, and the water purification cylinder is provided with a clean water chamber, which is connected to the sedimentation chamber.

[0022] Furthermore, a sludge collection ramp is provided on the sludge discharge base plate, and a sludge discharge outlet is provided on the sludge discharge base plate. The sludge discharge outlet is connected to the sewage collection module through a pipe. A sludge collection chamber is formed between the sludge discharge base plate and the conical partition plate. The sludge collection chamber is connected to the settling chamber through a settling gap.

[0023] Impurities entering the collection chamber are gradually drawn to the center of the discharge slab by the collection ramp. When the platform shakes due to external factors such as sea winds and waves, the treatment system shakes synchronously with the platform. The conical baffles can block and shield the impurities in the collection chamber, confining them within the collection area and making it difficult for them to be rolled back into the settling chamber with the shaking, thereby reducing the possibility of secondary turbidity in the condensate in the settling chamber.

[0024] Simultaneously, the counterweight oscillates under the influence of the shaking motion, causing the swing arm to oscillate synchronously. Since the swing arm is mounted on a unidirectional rotating component, it can only deflect intermittently in one direction, transforming the platform's irregular swaying into intermittent unidirectional rotation of the swing arm around its central axis. The swing arm further drives the scraper to rotate and sweep around the sludge collection slope via a connecting rod, continuously removing impurities adhering to the slope, reducing impurity deposition and lowering the risk of clogging the discharge outlet. The swing cleaner's self-oscillating design eliminates the need for an additional power source, saving marine energy.

[0025] The control system periodically opens the drain outlet, and the liquid in the collection chamber carries impurities from the drain outlet into the sewage collection module, thereby completing the sewage discharge.

[0026] Furthermore, the filtration module includes a primary filter element and a secondary filter element. The primary filter element is connected to the secondary filter element through a pipe, the primary filter element is connected to the liquid extraction pipe through a pipe, and the secondary filter element is connected to the purified water tank through a pipe.

[0027] A water pump is installed on the connecting pipe between the primary filter element and the inlet; the primary and secondary filter elements are used to filter the sedimentation water.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. By setting up a spiral deceleration channel, the external condensate is slowed down before entering the annular cavity, avoiding direct impact of the condensate on the original water in the settling cylinder, reducing water disturbance, and thus improving the stability and settling efficiency of the initial settling of the condensate.

[0030] 2. Through the combination of the settling chamber, conical baffle, settling gap and sludge collection chamber, impurities in the condensate can settle under the action of gravity and be guided into the sludge collection chamber along the conical baffle to collect and gather, thereby separating the settling area from the sludge collection area and reducing the risk of bottom impurities re-entering the settling chamber and causing secondary turbidity.

[0031] 3. By coordinating counterweights, swing arms, one-way rotating parts, connecting rods, and scrapers, the irregular swaying of the offshore platform caused by wind and waves is transformed into one-way intermittent scraping action of the scrapers. This allows the scrapers to perform follow-up cleaning of the sludge collection slope, reducing the accumulation of impurities, lowering the risk of clogging the discharge outlet, and reducing the use of additional power sources.

[0032] 4. By using a suspension plate, sliding sleeve, central shaft, and liquid collection tank, the liquid collection tank can automatically rise and fall with the changes in the liquid level in the purified water chamber, and always remain in a relatively stable liquid collection area below the liquid surface, preventing foam, oil, and floating light impurities from being sucked into the filter module, thereby reducing the subsequent filtration load.

[0033] 5. A multi-stage flow stabilization structure is formed by the upper suspension plate, the middle water purification cylinder and the lower conical baffle. The overflow hole on the suspension plate releases the energy of liquid surface fluctuations, so that the anti-wave sedimentation module can effectively reduce liquid surface fluctuations, isolate the water purification chamber and the sedimentation chamber and limit the rolling of bottom sedimentary impurities under the swaying conditions caused by sea wind and waves, thereby improving the stability of sedimentation and liquid extraction under adverse environmental conditions. Attached Figure Description

[0034] Figure 1 This is a perspective view of the overall processing system of the present invention;

[0035] Figure 2 The internal three-dimensional structure of the processing system of the present invention Figure 1 ;

[0036] Figure 3 The internal three-dimensional structure of the processing system of the present invention Figure 2 ;

[0037] Figure 4 This is a perspective view of the anti-wave precipitation module of the present invention;

[0038] Figure 5 This is a partial perspective view of the anti-wave precipitation module of the present invention;

[0039] Figure 6 This is a perspective view of the suspension liquid extractor of the present invention;

[0040] Figure 7 This is a perspective view of the spiral buffer assembly of the present invention;

[0041] Figure 8 This is a perspective view of the swing cleaner of the present invention;

[0042] Figure 9 This is a perspective view of the unidirectional rotating component of the present invention.

[0043] In the diagram: 1. Intelligent control module; 2. Recycling cabinet; 3. Anti-wave sedimentation module; 4. Wastewater collection module; 5. Primary filter element; 6. Secondary filter element; 7. Clean water tank; 9. Sludge collection chamber; 10. Circular cavity; 11. Settling chamber; 12. Clean water chamber; 31. Spiral buffer assembly; 32. Clean water cylinder; 33. Conical baffle; 34. Swing cleaner; 35. Sludge discharge plate; 36. Settling cylinder; 37. Central shaft; 38. Suspended liquid extractor; 331. Sludge discharge slope; 332. Settling gap; 351. Sludge collection slope; 352. Sludge outlet; 32 1. Water purification hole; 311. Spiral plate; 312. Upper partition; 313. Water inlet; 314. Lower partition; 315. Water outlet; 316. Outer cylinder; 317. Spiral deceleration track; 341. One-way rotating component; 342. Swing rod; 343. Counterweight; 344. Scraper; 345. Connecting rod; 3411. Rotating shell; 3412. Ratchet; 3413. Spring plate; 3414. Pawl; 381. Suspension plate; 382. Overflow hole; 383. Sliding sleeve; 384. Liquid collection pipe; 385. Liquid collection tank; 386. Liquid inlet gap. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example: Figures 1-9 As shown, the present invention provides a technical solution: a condensate recovery and treatment system for offshore platforms, including a recovery cabinet 2 and an anti-wave sedimentation module 3. An intelligent control module 1 is installed in the recovery cabinet 2, a filter module is installed in the recovery cabinet 2, a clean water tank 7 and a sewage collection module 4 are installed in the recovery cabinet 2 respectively, and the filter module is connected to the clean water tank 7.

[0046] The anti-wave sedimentation module 3 includes a sedimentation cylinder 36, a sludge discharge plate 35 installed at the bottom of the sedimentation cylinder 36, the sludge discharge plate 35 being connected to the sewage collection module 4 via a pipe, a spiral buffer assembly 31 installed on the sedimentation cylinder 36, a central shaft 37 installed on the sludge discharge plate 35, and a swing cleaner 34, a conical baffle 33, and a water purification cylinder 32 installed sequentially from bottom to top on the central shaft 37, the bottom of the swing cleaner 34 being close to the sludge discharge plate 35, a suspended liquid extractor 38 being movably installed on the central shaft 37, the suspended liquid extractor 38 being connected to the filter module via a pipe, and an annular cavity 10 being formed between the water purification cylinder 32 and the sedimentation cylinder 36.

[0047] The intelligent control module 1 controls and regulates the entire treatment system through its built-in control system. The sewage collection module 4 is a sewage tank. The clean water tank 7 is connected to external water-using terminals such as fire-fighting water tanks and domestic water tanks via pipes.

[0048] The spiral buffer assembly 31 includes a spiral plate 311, which is installed at the top of the settling cylinder 36. An outer cylinder 316 is installed on the spiral plate 311. The spiral plate 311, the outer cylinder 316, and the water purification cylinder 32 form a spiral deceleration channel 317. An inlet 313 is opened at the top of the spiral deceleration channel 317, and an outlet 315 is opened at the bottom of the spiral deceleration channel 317. An upper baffle 312 is installed on the spiral plate 311 near the outlet 315, and a lower baffle 314 is installed on the spiral plate 311 near the outlet 315.

[0049] The inlet 313 is located on the spiral plate 311, and the outlet 315 is located on the settling cylinder 36. The inlet 313 is connected to the external condensate recovery pipe. The spiral deceleration channel 317 is a spiral channel with a gentle slope, and the surface of the channel is made of a high-friction coefficient material to relatively slow down the water flow speed through friction.

[0050] The filtration module includes a primary filter element 5 and a secondary filter element 6. The primary filter element 5 is connected to the secondary filter element 6 via a pipe, and the primary filter element 5 is also connected to the liquid intake pipe 384 via a pipe. The secondary filter element 6 is connected to the purified water tank 7 via a pipe. A water pump is installed on the connecting pipe between the primary filter element 5 and the inlet 313. The primary filter element 5 and the secondary filter element 6 are used to filter the sedimentation water.

[0051] The conical partition 33 is provided with a sewage discharge ramp 331. The conical partition 33 and the bottom end of the water purification cylinder 32 form a settling chamber 11. The settling chamber 11 is connected to the annular cavity 10. The conical partition 33 and the inner wall of the settling cylinder 36 form a settling gap 332. The settling gap 332 is located at the bottom end of the settling chamber 11. The bottom end of the water purification cylinder 32 is provided with a clean water hole 321. The water purification cylinder 32 is provided with a clean water chamber 12. The clean water chamber 12 is connected to the settling chamber 11.

[0052] The sewage discharge base plate 35 is provided with a sewage collection ramp 351 and a sewage discharge outlet 352. The sewage discharge outlet 352 is connected to the sewage collection module 4 through a pipe. The sewage discharge base plate 35 and the conical partition plate 33 form a sewage collection chamber 9. The sewage collection chamber 9 is connected to the settling chamber 11 through the settling gap 332.

[0053] The swing cleaner 34 includes a one-way rotating component 341, which is mounted on a central shaft 37. Several swing rods 342 are mounted on the one-way rotating component 341. A connecting rod 345 is mounted on the swing rod 342. A scraper 344 is mounted at the bottom of the connecting rod 345. The scraper 344 is close to the sewage discharge base plate 35. A counterweight 343 is mounted at one end of the swing rod 342.

[0054] The one-way rotating component 341 includes a ratchet 3412 and a rotating housing 3411. The ratchet 3412 is mounted on the central shaft 37, and the rotating housing 3411 is rotatably mounted on the central shaft 37. Several spring plates 3413 are installed inside the rotating housing 3411, and several pawls 3414 are rotatably mounted inside the rotating housing 3411. The pawls 3414 mesh with the ratchet 3412, and one end of the spring plate 3413 is close to the pawl 3414. The swing rod 342 is mounted on the rotating housing 3411.

[0055] When the rotating housing 3411 rotates in the permissible direction, the pawl 3414 can slide along the tooth surface of the ratchet 3412 and engage with the next tooth groove in sequence, so that the rotating housing 3411 can rotate smoothly; when the rotating housing 3411 rotates in the opposite direction, the pawl 3414 and the tooth groove of the ratchet 3412 form a stop, preventing the rotating housing 3411 from rotating back, so that the rotating housing 3411 can only rotate in a single direction.

[0056] The suspended liquid extractor 38 includes a sliding sleeve 383, which is movably mounted on a central shaft 37. A liquid extraction tank 385 is installed at the bottom of the sliding sleeve 383. Several liquid inlet slits 386 are provided circumferentially on the liquid extraction tank 385. A suspension plate 381 is installed at the top of the sliding sleeve 383. A liquid extraction tube 384 is installed on the liquid extraction tank 385. The bottom end of the liquid extraction tube 384 is connected to the inside of the liquid extraction tank 385. The top end of the liquid extraction tube 384 passes through the suspension plate 381 and is connected to the primary filter element 5 through a pipe. Several overflow holes 382 are provided on the suspension plate 381.

[0057] The suspension plate 381 is made of low-density material and can use its own buoyancy to make the suspended liquid extractor 38 float in the condensate water. The sliding sleeve 383 is slidably engaged with the central shaft 37, so that the suspended liquid extractor 38 can only move up and down along the central shaft 37, avoiding large swaying when the platform shakes or the liquid surface fluctuates, thereby improving the stability of the liquid extraction position.

[0058] The working principle of this invention is as follows: An external condensate recovery pipe introduces condensate from the inlet 313 into the spiral deceleration channel 317. This allows the water to flow slowly into the annular cavity 10 after passing through a gentle channel, preventing the water from directly falling into the annular cavity 10 and impacting the existing condensate, which could cause sediment to churn and affect sedimentation efficiency. The condensate then falls from the annular cavity 10 into the settling chamber 11. Impurities in the condensate settle due to their own gravity within the settling chamber 11. Upon contact with the conical baffle 33, the settled impurities slide down the drain slope 331 and pass through the settling gap 332 into the collection chamber 9.

[0059] Meanwhile, the settled water enters the clean water chamber 12 through the clean water inlet 321, becoming settled water; the settled water enters the liquid collection tank 385 through the liquid inlet gap 386. The control system starts the water pump, which draws the settled water from the liquid collection tank 385 through the pipe and liquid collection pipe 384 and delivers it to the filtration module. The primary filter element 5 and the secondary filter element 6 perform multi-stage filtration on the settled water. The filtered water enters the clean water tank 7 through the pipe. The intelligent control module 1 distributes the clean water in the clean water tank 7 according to the water demand of the user through an external conveying device, thereby completing the condensate recovery treatment.

[0060] Impurities entering the collection chamber 9 are gradually drawn to the center of the discharge bottom plate 35 by the collection ramp 351. When the platform shakes due to external factors such as sea wind and waves, the treatment system shakes synchronously with the platform. The conical baffle 33 can block and shield the impurities in the collection chamber, confining them within the collection area and making it difficult for them to be rolled back into the settling chamber 11 with the shaking, thereby reducing the possibility of secondary turbidity of the condensate in the settling chamber 11.

[0061] Simultaneously, the counterweight 343 oscillates under the influence of the swaying motion, causing the swing rod 342 to oscillate synchronously. Since the swing rod 342 is mounted on the unidirectional rotating component 341, it can only deflect intermittently in one direction, transforming the platform's irregular swaying into unidirectional intermittent rotation of the swing rod 342 around the central axis 37. The swing rod 342 further drives the scraper 344 to rotate and scrape around the sludge collection slope 351 via the connecting rod 345, continuously removing impurities adhering to the sludge collection slope 351, reducing impurity deposition and lowering the risk of blockage at the discharge outlet 352. The self-oscillating design of the swing cleaner 34 avoids the need for an additional power source, saving marine energy.

[0062] The control system periodically opens the drain outlet 352, and the liquid in the collection chamber carries impurities from the drain outlet 352 into the sewage collection module 4, thereby completing the sewage discharge.

[0063] When the condensate level in the water purification chamber 12 changes, the suspension plate 381 can rise and fall synchronously with the liquid level, and drive the liquid collection box 385 to move up and down automatically along the central axis 37. This allows the liquid collection box 385 to automatically adjust its height according to the liquid level without additional drive, so that the liquid collection box 385 can always be kept in a relatively stable liquid collection area below the liquid surface. This avoids the liquid collection position being too high, which would cause foam, oil or floating light impurities to be sucked into the filter module, reducing the filter load and the risk of clogging.

[0064] The suspension plate 381 is provided with several overflow holes 382. When the liquid surface in the purified water chamber 12 fluctuates due to platform shaking, the suspension plate 381 can adhere to the upper part of the liquid surface to form a floating constraint, reducing the large fluctuations of the liquid surface. At the same time, some condensate can be slowly exchanged up and down through the overflow holes 382, ​​so that the energy of the liquid surface fluctuation is dispersed and released, preventing the suspension plate 381 from being violently lifted or slapped due to water impact. Furthermore, since the suspension plate 381 is guided and limited by the central shaft 37 through the sliding sleeve 383, it can only rise and fall stably along the central shaft 37, and is not prone to tilting or shaking, further improving the stability of the liquid collection position and the liquid surface of the purified water chamber 12 under shaking conditions.

[0065] The suspension plate 381 is located at the upper part of the settling cylinder 36, the water purification cylinder 32 is located in the middle of the settling cylinder 36, and the conical baffle 33 is located at the lower part of the settling cylinder 36, forming a multi-stage stable flow structure inside the settling cylinder 36 from top to bottom. When the platform shakes, the upper suspension plate 381 weakens the liquid surface fluctuation, the middle water purification cylinder 32 isolates the settling chamber 11 and the water purification chamber 12, and the lower conical baffle 33 blocks the settling impurities. The three work together to reduce the overall shaking amplitude of the condensate in the settling cylinder 36, reduce the risk of foam, light impurities, and bottom sediments being rolled and migrated with the water flow, thereby improving the stability of settling and liquid collection under adverse environmental conditions.

[0066] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A condensate recovery and treatment system for offshore platforms, characterized in that: The processing system includes a recycling cabinet (2) and an anti-fluctuation sedimentation module (3). The recycling cabinet (2) is equipped with an intelligent control module (1), a filtration module, a clean water tank (7), and a sewage collection module (4). The filtration module is connected to the clean water tank (7). The anti-wave sedimentation module (3) includes a sedimentation cylinder (36), a sewage discharge plate (35) is installed at the bottom of the sedimentation cylinder (36), the sewage discharge plate (35) is connected to the sewage collection module (4) through a pipe, a spiral buffer assembly (31) is installed on the sedimentation cylinder (36), a central shaft (37) is installed on the sewage discharge plate (35), a swing cleaner (34), a conical partition (33) and a water purification cylinder (32) are installed on the central shaft (37) from bottom to top, the bottom of the swing cleaner (34) is close to the sewage discharge plate (35), a suspended liquid extractor (38) is movably installed on the central shaft (37), the suspended liquid extractor (38) is connected to the filter module through a pipe, and the water purification cylinder (32) and the sedimentation cylinder (36) form an annular cavity (10).

2. The offshore platform condensate recovery and treatment system according to claim 1, characterized in that: The spiral buffer assembly (31) includes a spiral plate (311), which is installed at the top of the settling cylinder (36). An outer cylinder (316) is installed on the spiral plate (311). The spiral plate (311), the outer cylinder (316), and the water purification cylinder (32) form a spiral deceleration channel (317). An inlet (313) is provided at the top of the spiral deceleration channel (317), and an outlet (315) is provided at the bottom of the spiral deceleration channel (317). An upper partition (312) is installed on the spiral plate (311) near the outlet (315), and a lower partition (314) is installed on the spiral plate (311) near the outlet (315).

3. The offshore platform condensate recovery and treatment system according to claim 2, characterized in that: The swing cleaner (34) includes a one-way rotating component (341), which is mounted on a central shaft (37). Several swing rods (342) are mounted on the one-way rotating component (341). A connecting rod (345) is mounted on the swing rod (342). A scraper (344) is mounted at the bottom end of the connecting rod (345). The scraper (344) is close to the sewage discharge base plate (35). A counterweight (343) is mounted at one end of the swing rod (342).

4. The offshore platform condensate recovery and treatment system according to claim 3, characterized in that: The one-way rotating component (341) includes a ratchet (3412) and a rotating housing (3411). The ratchet (3412) is mounted on a central shaft (37), and the rotating housing (3411) is rotatably mounted on the central shaft (37). A plurality of spring plates (3413) are installed inside the rotating housing (3411), and a plurality of pawls (3414) are rotatably mounted inside the rotating housing (3411). The pawls (3414) mesh with the ratchet (3412), and one end of the spring plate (3413) is close to the pawl (3414). The swing rod (342) is mounted on the rotating housing (3411).

5. The offshore platform condensate recovery and treatment system according to claim 3, characterized in that: The suspended liquid extractor (38) includes a sliding sleeve (383), which is movably mounted on a central shaft (37). A liquid extraction box (385) is installed at the bottom of the sliding sleeve (383). Several liquid inlet gaps (386) are provided circumferentially on the liquid extraction box (385). A suspension plate (381) is installed at the top of the sliding sleeve (383). A liquid extraction tube (384) is installed on the liquid extraction box (385). The bottom end of the liquid extraction tube (384) is connected to the inside of the liquid extraction box (385). The top end of the liquid extraction tube (384) passes through the suspension plate (381) and is connected to the primary filter element (5) through a pipe. Several overflow holes (382) are provided on the suspension plate (381).

6. The offshore platform condensate recovery and treatment system according to claim 3, characterized in that: The conical partition (33) is provided with a sewage discharge ramp (331). The conical partition (33) and the bottom end of the water purification cylinder (32) form a settling chamber (11). The settling chamber (11) is connected to the annular cavity (10). The conical partition (33) and the inner wall of the settling cylinder (36) form a settling gap (332). The settling gap (332) is located at the bottom end of the settling chamber (11). The bottom of the water purification cylinder (32) is provided with a clean water hole (321), and the water purification cylinder (32) is provided with a water purification chamber (12), which is connected to the sedimentation chamber (11).

7. A condensate recovery and treatment system for offshore platforms according to claim 6, characterized in that: The sewage discharge base plate (35) is provided with a sewage collection ramp (351), and the sewage discharge base plate (35) is provided with a sewage outlet (352). The sewage outlet (352) is connected to the sewage collection module (4) through a pipe. The sewage discharge base plate (35) and the conical partition plate (33) form a sewage collection chamber (9). The sewage collection chamber (9) is connected to the settling chamber (11) through a settling gap (332).

8. The offshore platform condensate recovery and treatment system according to claim 3, characterized in that: The filtration module includes a primary filter element (5) and a secondary filter element (6). The primary filter element (5) is connected to the secondary filter element (6) through a pipe. The primary filter element (5) is connected to the liquid collection pipe (384) through a pipe. The secondary filter element (6) is connected to the purified water tank (7) through a pipe.

Images