Combined gas-liquid fiber separator

Abstract

The invention belongs to the technical field of gas-liquid separation, and particularly relates to a combined gas-liquid fiber separator. Comprising a separation tank, a feeding port is formed in the lower side of the separation tank, a first liquid discharging port is formed in the bottom of the separation tank, a second liquid discharging port is formed in the upper side of the separation tank, and a partition plate is connected into the separation tank between the first liquid discharging port and the second liquid discharging port in a sealed mode; the separating tank is divided into a first liquid discharging space at the lower part and a second liquid discharging space at the upper part by the separating plate; a plurality of gas-liquid fiber separators are evenly installed on the partition plate, and gas outlets of the gas-liquid fiber separators face the interior of the first liquid discharging space. A gas-liquid separation grid is fixedly connected to the interior of the separation tank above the second liquid outlet, and a gas outlet is formed in the top of the separation tank. Through the combination of tubular separation and grating type, gas is finally and completely separated, and the separation effect is good.

Description

Technical Field

[0001] This invention belongs to the field of gas-liquid separation technology, and specifically relates to a combined gas-liquid fiber separator. Background Technology

[0002] In the petrochemical industry, gas-liquid separation is a crucial process, its primary purpose being to separate the gas and liquid components from the mixture produced from oil wells. This is because, during oilfield development and production, crude oil or natural gas in underground reservoirs is often mixed with water and other impurities. Therefore, gas-liquid separation is one of the key steps in the extraction, processing, and transportation of oil and gas products. Gas-liquid separation can be achieved through various methods, such as gravity separation, filtration separation, and sedimentation separation.

[0003] Gas-liquid separation plays a vital role in the petroleum industry and other industrial sectors. The separated gas and liquid are easier to handle and transport, which can improve production efficiency and output, reduce production costs, and thus enhance the competitiveness of enterprises. Some components in the mixture may be hazardous. Through gas-liquid separation, these hazardous components can be separated out, ensuring the safety of the production process and reducing environmental pollution.

[0004] Chinese Patent Application No. CN202321454141.1 discloses a gas-liquid separation device and a gas-liquid separation system. The gas-liquid separation device includes a separation tank, an exhaust port on the upper side of the separation tank, a drain port on the lower side of the separation tank, an air inlet on the separation tank, and a liquid collection mechanism. The separation tank contains at least one layer of baffles above the air inlet. Each baffle has at least one accommodating cavity with an open bottom and a fiber coalescing unit located within the accommodating cavity. The sidewall of the accommodating cavity has through holes to allow liquid-containing gas entering the separation tank from the air inlet to undergo gas-liquid separation via the fiber coalescing unit. The separated gas is discharged through the exhaust port, and the separated liquid is transported to the drain port by the liquid collection mechanism and discharged. This gas-liquid separation device can perform gas-liquid separation processing on liquid-containing gases, with high separation efficiency and a simple structure, making it easy to maintain.

[0005] Gas-liquid mixtures are poorly separated using conventional single fibers. If complete gas-liquid separation is required, a large number of repeated separations are necessary, which is inefficient, complex in structure, and carries the risk of incomplete separation. Summary of the Invention

[0006] To address the aforementioned shortcomings, this invention provides a combined gas-liquid fiber separator. This invention combines tubular separation and grid-type separation to deeply separate liquid from gas, effectively removing liquid from gas-liquid mixtures. Through the uniformly spaced first and second fiber blocks, and by combining the contact angle between the liquid and the fiber, as well as the design of their respective porosities, this invention achieves complete gas separation with excellent separation performance. Furthermore, this invention offers excellent gas separation while maintaining a simple structure.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] A combined gas-liquid fiber separator includes a separation tank with a feed inlet on its lower side, a first drain outlet at the bottom of the separation tank, and a second drain outlet on its upper side. A partition is sealed inside the separation tank between the first and second drain outlets, dividing the separation tank into a lower first drain space and an upper second drain space. Multiple gas-liquid fiber separators are evenly mounted on the partition, with their outlets facing the interior of the first drain space. A gas-liquid separation grid is fixedly connected inside the separation tank above the second drain outlet, and an outlet is located at the top of the separation tank.

[0009] Preferably, the gas-liquid fiber separator includes a wire mesh layer, which wraps around to form the outer wall of the gas-liquid fiber separator; the wire mesh layer is bent upwards to form the gas outlet of the gas-liquid fiber separator; the side wall of the gas-liquid fiber separator is divided into three layers from the outside to the inside, namely the wire mesh layer, the fiber layer and the liquid drainage layer; the liquid drainage layer has a porous structure; and the bottom of the gas-liquid fiber separator is fixedly and sealed to the inner side wall.

[0010] More preferably, the mesh layer is a metal mesh with a contact angle greater than 150° with the liquid surface; the fiber layer has a contact angle between 90° and 110° with the liquid surface.

[0011] More preferably, the metal mesh material of the mesh layer is stainless steel mesh or copper mesh.

[0012] More preferably, the gas-liquid fiber separator has a tubular structure, and the wire mesh layer is arranged vertically.

[0013] Preferably, the gas-liquid separation grid includes a first fiber block and a second fiber block, which are evenly spaced on the gas-liquid separation grid, and the contact angle between the first fiber block and the liquid surface is smaller than the contact angle between the second fiber block and the liquid surface.

[0014] More preferably, the contact angle between the first fiber block and the liquid is between 90° and 110°, and the contact angle between the second fiber block and the liquid is between 130° and 150°.

[0015] More preferably, the thickness of the first fiber block is 200-300 mm, and the thickness of the second fiber block is 100-200 mm.

[0016] Preferably, the porosity of the first fiber block is less than 80%, and the porosity of the second fiber block is between 85% and 90%.

[0017] This invention also claims a gas-liquid separation method using the above-described combined gas-liquid fiber separator, comprising the following steps:

[0018] S1. The gas-liquid mixture is fed into the feed inlet. The gas-liquid mixture is separated and aggregated by passing through the wire mesh layer and the fiber layer in sequence. The liquid is discharged through the drain layer. The treated gas enters the second drain space through the gas outlet of the gas-liquid fiber separator.

[0019] S2. The treated gas passes through the gas-liquid separation grid and the remaining liquid is condensed by the first fiber block. The gas after the liquid is condensed overflows from the outside of the first fiber block and is isolated and separated by the second fiber block, so that the gas is finally completely separated.

[0020] S3. The separated gas is discharged from the gas outlet, and the separated liquid is discharged from the first drain outlet and the second drain outlet.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) This invention uses a combination of tubular separation and grid separation to deeply separate liquid from gas. The gas-liquid fiber separator has a multi-layer structure consisting of a wire mesh layer, a fiber layer, and a drain layer from the outside to the inside. The gas-liquid mixture first comes into contact with the wire mesh layer over a large area. The large contact angle of the wire mesh layer blocks most of the liquid outside the wire mesh. The small contact angle of the second fiber layer allows the liquid to be collected and the gas to pass through. Finally, the liquid is drained through the adjacent porous drain layer, so that the liquid in the gas-liquid mixture is effectively removed.

[0023] (2) The present invention uses a first fiber block and a second fiber block that are evenly spaced and combined with the small contact angle of the first fiber block and the large contact angle of the second fiber block to enable the gas after being treated by the gas-liquid fiber separator to be treated again in all directions and without dead angles. The gas containing liquid is first treated by the first fiber block, and the liquid is condensed on the first fiber block. Under the action of the first fiber block with a porosity of less than 80%, the gas after the liquid is condensed overflows from the periphery of the first fiber block to the outside. It is isolated and separated by the second fiber block with a porosity of 85% to 90%, so that the liquid will not pass through the second fiber block. Through the combination of the contact angle between the liquid and the fiber and the design of their respective porosities, the gas is finally completely separated, and the separation effect is good.

[0024] (3) The combined design of the tubular gas-liquid fiber separator and the gas-liquid separation grid of the present invention firstly separates the gas-liquid mixture in a large area by the vertically set gas-liquid fiber separator. It is initially separated by the multi-layer structure of the wire mesh layer, fiber layer and liquid drainage layer. Since the movement trajectory of the gas-liquid mixture is disordered, the gas-liquid fiber separator has different effects on the gas-liquid mixture in different directions. It is then processed again by the horizontally set gas-liquid separation grid. Through the cooperation of the first fiber block and the second fiber block, the final gas separation effect is good and the structure is simple. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a combined gas-liquid fiber separator according to the present invention;

[0026] Figure 2 This is a schematic diagram of the gas-liquid separation grid structure of a combined gas-liquid fiber separator according to the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of a combined gas-liquid fiber separator according to the present invention.

[0028] The attached figures are labeled as follows: Separator 100; Baffle 200; Gas-liquid separation grid 300; First fiber block 310; Second fiber block 320; Gas-liquid fiber separator 400; Wire mesh layer 410; Fiber layer 420; Drainage layer 430; Feed inlet 500; First drain outlet 600; Second drain outlet 700; Gas outlet 800. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] Although the steps in this invention are arranged by reference numerals, this is not intended to limit the order of the steps. Unless the order of the steps is explicitly stated or the execution of a step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" as used herein refers to and covers any and all possible combinations of one or more of the associated listed items.

[0031] The specific operating principle of the combined gas-liquid fiber separator of the present invention is as follows:

[0032] This invention first introduces a gas-liquid mixture into an inlet 500, located below a separator 100. Upon entering the separator 100, the gas-liquid mixture comes into contact with multiple gas-liquid fiber separators 400 inside the separator 100. These separators 400 are evenly and vertically arranged on a partition inside the separator 100. The gas-liquid mixture sequentially passes through a wire mesh layer 410 and a fiber layer 420 for separation and aggregation. Initially, the large contact angle of the wire mesh layer 410 prevents most of the liquid from being trapped outside the mesh. The wire mesh layer 410 is made of metal, such as stainless steel or copper, and the contact angle between the wire mesh layer 410 and the liquid surface is greater than 150°, for example, 151°, 153°, or 150°. 55°, 157°, 160°, 163°, 165°, 158°, 170°, 173°, 175°, 177°, 179°; then, the liquid is collected and the gas permeates through the small contact angle of the second fiber layer 420. For example, the contact angle between the fiber layer 420 and the liquid surface can be 90°, 93°, 95°, 97°, 100°, 103°, 105°, 107°, 110°; finally, the liquid is drained through the adjacent porous drainage layer 430, so that the liquid in the gas-liquid mixture is effectively removed. The removed liquid is discharged through the first drainage port 600, and the treated gas enters the second drainage space through the gas outlet of the gas-liquid fiber separator 400.

[0033] The treated gas passes through the gas-liquid separation grid 300. The horizontally arranged gas-liquid separation grid 300 allows the gas treated by the gas-liquid fiber separator 400 to be processed again in all directions, uniformly, and without dead angles. The first fiber block 310 and the second fiber block 320 are evenly distributed. The contact angle between the first fiber block 310 and the liquid is between 90° and 110°, for example, 90°, 92°, 94°, 96°, 98°, 100°, 102°, 104°, 106°, 108°, and 110°. The contact angle between the second fiber block 320 and the liquid is between 130° and 150°, for example, 130°, 133°, 135°, 137°, 140°, 143°, 145°, 147°, and 150°. The thickness of the first fiber block 310 is 200-300 mm, for example, 200 mm, 220 mm, 240 mm, 260 mm, 280 mm, or 300 mm; the thickness of the second fiber block 320 is 100-200 mm, for example, 100 mm, 120 mm, 140 mm, 160 mm, 180 mm, or 200 mm; the porosity of the first fiber block 310 is less than 80%, for example, 79%, 78%, 77%, 76%, 75%, 74%, 73%, 72%, 71%, or 70%; the porosity of the second fiber block 320 is between 85% and 90%, for example, 85%, 86%, 87%, 88%, 89%, or 90%; through the first fiber... The combination of the small contact angle of the first fiber block 310 and the large contact angle of the second fiber block 320 allows the gas treated by the gas-liquid fiber separator 400 to be processed uniformly and without dead angles. The gas containing liquid is first processed by the first fiber block 310, and the liquid is condensed on the first fiber block 310. Under the action of the first fiber block 310 with a porosity of less than 80%, the condensed gas overflows from the periphery of the first fiber block 310 and is isolated and separated by the second fiber block 320 with a porosity of 85% to 90%. Thus, the liquid will not pass through the second fiber block 320. Through the combination of the contact angle between the liquid and the fiber and the design of their respective porosities, the gas is finally completely separated, and the separation effect is good. Due to the porosity structure and contact angle of the first fiber block 310 and the second fiber block 320, the liquid will not condense when the gas containing liquid is in the second fiber block 320. Instead, the liquid will condense first in the first fiber block 310. The gas will not pass through the first fiber block 310 but will overflow outwards from the periphery of the first fiber block 310 and be processed by the second fiber block 320. The residual liquid is isolated, while the gas will pass through the second fiber block 320 and be separated, so that the gas is completely separated. The separation effect is good. The separated gas is discharged from the gas outlet 800, and the liquid is discharged from the second liquid outlet 700.

[0034] By combining the tubular gas-liquid fiber separator 400 and the gas-liquid separation grid 300, the gas-liquid mixture is first separated longitudinally over a large area by the vertically arranged gas-liquid fiber separator 400. It is initially separated by the multi-layer structure of the wire mesh layer 410, fiber layer 420 and drainage layer 430. Since the movement trajectory of the gas-liquid mixture is disordered, the effect of the gas-liquid fiber separator 400 on the gas-liquid mixture in different directions is also different. It is then further processed by the horizontally arranged gas-liquid separation grid 300. Through the cooperation of the first fiber block 310 and the second fiber block 320, the final gas separation effect is good, and the structure is simple.

[0035] Example 1

[0036] like Figures 1-3 As shown, a combined gas-liquid fiber separator includes a separation tank 100. A feed inlet 500 is provided on the lower side of the separation tank 100. A first drain outlet 600 is provided at the bottom of the separation tank 100, and a second drain outlet 700 is provided on the upper side of the separation tank 100. A partition 200 is enclosed inside the separation tank 100 between the first drain outlet 600 and the second drain outlet 700, dividing the separation tank 100 into a lower first drain space and an upper second drain space. Multiple gas-liquid fiber separators 400 are evenly installed on the partition 200, with the air outlets of the gas-liquid fiber separators 400 facing the interior of the first drain space. A gas-liquid separation grid 300 is fixedly connected inside the separation tank 100 above the second drain outlet 700, and an air outlet 800 is provided at the top of the separation tank 100.

[0037] It is worth noting that the height of the air outlet of the gas-liquid fiber separator 400 is higher than the height of the second drain outlet 700, so that the liquid can be drained smoothly.

[0038] Preferably, the gas-liquid fiber separator 400 includes a mesh layer 410, which wraps around to form the outer wall of the gas-liquid fiber separator 400; the mesh layer 410 is bent upwards to form the air outlet of the gas-liquid fiber separator 400; the side wall of the gas-liquid fiber separator 400 is divided into three layers from the outside to the inside, namely the mesh layer 410, the fiber layer 420 and the drain layer 430; the drain layer 430 has a porous structure; the bottom of the gas-liquid fiber separator 400 is fixedly and sealed to the inner side wall.

[0039] More preferably, the mesh layer 410 is a metal mesh with a contact angle greater than 150° with the liquid surface; the fiber layer 420 has a contact angle between 90° and 110° with the liquid surface.

[0040] This invention achieves deep separation of liquid from gas through a combination of tubular separation and grid separation. The gas-liquid fiber separator 400 has a multi-layered structure consisting of a mesh layer 410, a fiber layer 420, and a drainage layer 430, arranged sequentially from the outside to the inside. The gas-liquid mixture first comes into contact with the mesh layer 410 over a large area. The large contact angle of the mesh layer 410 blocks most of the liquid outside the mesh. The small contact angle of the second fiber layer 420 allows the liquid to be collected while the gas permeates. Finally, the liquid is drained through the adjacent porous drainage layer 430, effectively removing the liquid from the gas-liquid mixture.

[0041] More preferably, the metal mesh material of the mesh layer 410 is stainless steel mesh or copper mesh.

[0042] More preferably, the gas-liquid fiber separator 400 has a tubular structure, and the wire mesh layer 410 is vertically arranged. The tubular structure of the gas-liquid fiber separator 400 greatly increases the contact area between the wire mesh layer 410 and the gas-liquid mixture. At the same time, the vertical structure design of the wire mesh layer 410 facilitates the longitudinal separation of the gas-liquid mixture and increases the effective area.

[0043] Preferably, the gas-liquid separation grid 300 includes a first fiber block 310 and a second fiber block 320, which are evenly spaced on the gas-liquid separation grid 300. The contact angle between the first fiber block 310 and the liquid surface is smaller than the contact angle between the second fiber block 320 and the liquid surface. This transversely arranged structural design of the gas-liquid separation grid 300 facilitates the transverse separation of the gas-liquid mixture, thereby achieving deep separation.

[0044] More preferably, the contact angle between the first fiber block 310 and the liquid is between 90° and 110°, and the contact angle between the second fiber block 320 and the liquid is between 130° and 150°.

[0045] More preferably, the thickness of the first fiber block 310 is 200-300 mm, and the thickness of the second fiber block 320 is 100-200 mm. The thickness design is more conducive to the gas-liquid separation grid 300 acting on the different flow directions of gas and liquid.

[0046] Preferably, the porosity of the first fiber block 310 is less than 80%, and the porosity of the second fiber block 320 is between 85% and 90%.

[0047] This invention utilizes uniformly spaced first fiber blocks 310 and second fiber blocks 320, and the combination of the small contact angle of the first fiber block 310 and the large contact angle of the second fiber block 320, to ensure that the gas treated by the gas-liquid fiber separator 400 can be processed uniformly and without dead angles. The gas containing liquid is first processed by the first fiber block 310, where the liquid condenses. Under the action of the first fiber block 310 with a porosity of less than 80%, the condensed gas overflows outwards from the periphery of the first fiber block 310 and is separated by the second fiber block 320 with a porosity of 85% to 90%. Thus, the liquid does not pass through the second fiber block 320. Through the combination of the contact angle between the liquid and the fiber and the design of their respective porosities, the gas is ultimately completely separated, resulting in excellent separation performance.

[0048] Example 2

[0049] A gas-liquid separation method using the above-mentioned combined gas-liquid fiber separator includes the following steps:

[0050] S1. The gas-liquid mixture is fed into the feed inlet 500. The gas-liquid mixture is separated and aggregated by passing through the wire mesh layer 410 and the fiber layer 420 in sequence. The liquid is discharged through the drain layer 430. The treated gas enters the second drain space through the gas outlet of the gas-liquid fiber separator 400.

[0051] S2. The treated gas passes through the gas-liquid separation grid 300 and the remaining liquid is condensed by the first fiber block 310. The gas after the liquid is condensed overflows from the outside of the first fiber block 310 and is isolated and separated by the second fiber block 320, so that the gas is finally completely separated.

[0052] S3. The separated gas is discharged from the gas outlet 800, and the separated liquid is discharged from the first drain outlet 600 and the second drain outlet 700.

[0053] The present invention combines a tubular gas-liquid fiber separator 400 with a gas-liquid separation grid 300. First, the gas-liquid mixture undergoes large-area longitudinal separation through the vertically arranged gas-liquid fiber separator 400. It is initially separated by a multi-layer structure consisting of a mesh layer 410, a fiber layer 420, and a drainage layer 430. Since the movement trajectory of the gas-liquid mixture is disordered, the gas-liquid fiber separator 400 has different effects on the gas-liquid mixture in different directions. It is then further processed by the horizontally arranged gas-liquid separation grid 300. Through the combined action of the first fiber block 310 and the second fiber block 320, the final gas separation effect is good, and the structure is simple.

[0054] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A combined gas-liquid fiber separator, characterized in that, The system includes a separator (100), with a feed inlet (500) on its lower side, a first drain outlet (600) at the bottom, and a second drain outlet (700) on its upper side. A partition (200) is connected inside the separator (100) between the first drain outlet (600) and the second drain outlet (700), and the partition (200) separates the separator... (100) is divided into a lower first drain space and an upper second drain space; a plurality of gas-liquid fiber separators (400) are evenly installed on the partition (200), and the gas outlet of the gas-liquid fiber separator (400) faces the interior of the first drain space; a gas-liquid separation grid (300) is fixedly connected inside the separation tank (100) located above the second drain (700), and a gas outlet (800) is provided on the top of the separation tank (100).

2. The combined gas-liquid fiber separator according to claim 1, characterized in that, The gas-liquid fiber separator (400) includes a wire mesh layer (410), which wraps around to form the outer wall of the gas-liquid fiber separator (400); the wire mesh layer (410) is bent upward to form the air outlet of the gas-liquid fiber separator (400); the side wall of the gas-liquid fiber separator (400) is divided into three layers from the outside to the inside, namely the wire mesh layer (410), the fiber layer (420) and the drain layer (430); the drain layer (430) has a porous structure; the bottom of the gas-liquid fiber separator (400) is fixedly and sealed to the inner side wall.

3. The combined gas-liquid fiber separator according to claim 2, characterized in that, The wire mesh layer (410) is a metal wire mesh with a contact angle greater than 150° with the liquid surface; the fiber layer (420) has a contact angle between 90° and 110° with the liquid surface.

4. The combined gas-liquid fiber separator according to claim 3, characterized in that, The metal wire mesh material of the wire mesh layer (410) is stainless steel wire mesh or copper wire mesh.

5. The combined gas-liquid fiber separator according to claim 2, characterized in that, The gas-liquid fiber separator (400) has a tubular structure, and the wire mesh layer (410) is vertically arranged.

6. The combined gas-liquid fiber separator according to claim 1, characterized in that, The gas-liquid separation grid (300) includes a first fiber block (310) and a second fiber block (320), which are evenly spaced on the gas-liquid separation grid (300). The contact angle between the first fiber block (310) and the liquid surface is smaller than the contact angle between the second fiber block (320) and the liquid surface.

7. The combined gas-liquid fiber separator according to claim 6, characterized in that, The contact angle between the first fiber block (310) and the liquid is between 90° and 110°, and the contact angle between the second fiber block (320) and the liquid is between 130° and 150°.

8. The combined gas-liquid fiber separator according to claim 6, characterized in that, The thickness of the first fiber block (310) is 200-300 mm, and the thickness of the second fiber block (320) is 100-200 mm.

9. A combined gas-liquid fiber separator according to claim 7, characterized in that, The porosity of the first fiber block (310) is less than 80%, and the porosity of the second fiber block (320) is between 85% and 90%.

10. A gas-liquid separation method using the combined gas-liquid fiber separator according to any one of claims 1 to 9, characterized in that, Includes the following steps: S1. The gas-liquid mixture is fed into the feed port (500). The gas-liquid mixture is separated and aggregated by passing through the wire mesh layer (410) and the fiber layer (420) in sequence. The liquid is discharged through the drain layer (430). The treated gas enters the second drain space through the gas outlet of the gas-liquid fiber separator (400). S2. The treated gas passes through the gas-liquid separation grid (300), and the remaining liquid is condensed by the first fiber block (310). The gas after the liquid is condensed overflows from the outside of the first fiber block (310) and is isolated and separated by the second fiber block (320), so that the gas is finally completely separated. S3. The separated gas is discharged from the gas outlet (800), and the separated liquid is discharged from the first drain outlet (600) and the second drain outlet (700).

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