A decentralized gas-liquid separation device
By setting up a separation unit and a permeable plate inside the separation device, the residence time of the gas-liquid mixture is extended, which solves the problems of low efficiency, high cost and poor safety in existing gas-liquid separation technologies, and achieves efficient and safe gas-liquid separation effect, which is suitable for industrial scenarios such as sodium hypochlorite generators.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN PENGXIANG ZHISHUI TECHNOLOGY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-23
AI Technical Summary
Existing gas-liquid separation technologies suffer from problems such as low separation efficiency, high system complexity, high cost, difficult maintenance, and high risk of leakage, making it difficult to meet the stringent requirements of modern industry for high efficiency, compactness, and safety.
A decentralized gas-liquid separation device is designed. By setting separation units inside the device, the residence time of the gas-liquid mixture is extended, and gas-liquid separation is achieved through a permeable plate and a funnel-shaped separation chamber. This reduces the number of separation tanks, and modular assembly and sealed connection are adopted to improve separation efficiency and safety.
It improves gas-liquid separation efficiency, reduces costs and maintenance complexity, minimizes gas residue, and ensures equipment safety. It is suitable for sodium hypochlorite generators and other industrial applications.
Smart Images
Figure CN224388373U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a chemical equipment, and more specifically, to a decentralized gas-liquid separation device. Background Technology
[0002] Currently, the gas-liquid separation technologies used in the industrial field mainly fall into five categories: cyclone separators utilize centrifugal force to separate droplets, but their effectiveness is poor when handling fine droplets and low-density gases; gravity sedimentation equipment relies on the density difference of substances for natural sedimentation, which has the disadvantages of low separation efficiency and the need for long residence times; filter separators, while possessing high precision, are prone to clogging; centrifugal separators, although having high separation efficiency, consume a lot of energy and are complex to maintain; and packed tower separators are prone to flooding and are also sensitive to changes in flow rate. Among these technologies, multi-stage gravity sedimentation separation devices are a common choice, which achieve step-by-step sedimentation separation through multiple tanks connected in series. However, this approach has the following significant problems: high system complexity, with multiple tank configurations requiring complex piping and control systems, leading to increased costs, larger footprint, and increased risk of leakage; and high maintenance difficulty, with impurities easily accumulating inside the tanks, requiring frequent shutdowns for cleaning, and the multi-stage series structure meaning that maintenance of a single tank can affect the normal operation of the entire system. These limitations make it difficult to meet the stringent requirements of modern industry for efficiency, compactness, and safety, and it urgently needs structural optimization and technological innovation. Utility Model Content
[0003] The purpose of this invention is to provide a decentralized gas-liquid separation device. By setting a separation unit in the separation device, the residence time of the mixture in the separation tube is extended, while the path of gas escaping from the liquid is shortened, allowing sufficient time for gas and liquid to separate, reducing the number of separation tanks used and lowering costs.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a decentralized gas-liquid separation device, the separation device including a separation tank; a drain port is provided at the bottom of the separation tank and an exhaust port is provided at the top; it also includes a feed pipe, which is provided inside the tank of the separation tank and has an outlet; a separation unit is provided below the outlet.
[0005] The separation unit includes a separation body with a funnel-shaped separation chamber inside. The bottom of the separation chamber is a drain outlet. A permeable plate is provided on the top of the separation body. Permeable holes are provided on the permeable plate. The gas-liquid mixture flowing out of the outlet is dispersed on the permeable plate and enters the separation chamber through the permeable holes. The gas and liquid are separated in the permeable plate and the separation chamber. After separation, the gas is discharged through the exhaust port. The liquid accumulates at the bottom of the tank and is discharged through the drain outlet.
[0006] Furthermore, the separation tank includes a gas collecting hood, a liquid collecting tank, and a separation cylinder; the gas collecting hood is detachably installed above the separation cylinder, and the exhaust port is located at the top of the gas collecting hood; the liquid collecting tank is detachably installed at the bottom of the separation cylinder, and the drain port is located below the liquid collecting tank.
[0007] Furthermore, the dimensions of the top of the separation body are adapted to the internal dimensions of the separation tank; the separation body is connected to the separation tank.
[0008] Furthermore, the separation device also includes a dispersing component; the dispersing component is disposed in the middle of the permeable plate; the dispersing component includes an umbrella part and a handle part; the umbrella part is connected to the permeable plate through the handle part; the discharge port is disposed above the umbrella part.
[0009] Furthermore, the permeable plate has a vent hole in the middle; the handle is a hollow pipe with the bottom of the handle connected to the vent hole; and the upper part of the handle has an air outlet.
[0010] Furthermore, the separation device includes multiple separation units; the multiple separation units are arranged sequentially from top to bottom inside the separation tank.
[0011] Furthermore, the cone-shaped separation cavity has a cone angle of α; 90°≤α≤120°.
[0012] Furthermore, the permeable plate is provided with multiple permeable holes; the multiple permeable holes are evenly distributed along the edge of the permeable plate; the sum of the top-view projection areas of the permeable holes is greater than or equal to the sum of the top-view projection areas of the discharge port, so that the total drainage volume of the permeable holes per unit time is greater than or equal to the drainage volume of the discharge port.
[0013] In summary, this utility model has the following beneficial effects:
[0014] By adopting the gas separation device provided by this utility model, the cost of gas separation is reduced on the one hand, and the separation device of this solution has high separation efficiency and low gas residue, which reduces the workload of the hydrogen exhaust system and ensures the safety of the sodium hypochlorite generator. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the hydrogen separation device in Example 1.
[0016] Figure 2 This is a cross-sectional view of the separation unit in Example 1.
[0017] Figure 3 This is a top view of the separation unit in Embodiment 1.
[0018] In the diagram: 1. Separation device; 11. Separation unit; 111. Separation body; 112. Separation chamber; 113. Leakage port; 114. Water permeable plate; 115. Water permeable hole; 116. Umbrella part; 117. Handle part; 118. Air outlet; 12. Gas collection hood; 121. Exhaust port; 13. Separation cylinder; 14. Liquid collection tank; 141. Drainage port; 15. Feed pipe. Detailed Implementation
[0019] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to that other component. This "connection" is not limited to a fixed connection or a movable connection; the specific connection method should be determined based on the specific technical problem to be solved.
[0021] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0023] Example 1:
[0024] A decentralized gas-liquid separation device includes a separation tank; the bottom of the separation tank is provided with a drain port 141 and the top is provided with an exhaust port 121; it also includes a feed pipe 15, which is disposed inside the tank of the separation tank and has a discharge port; a separation unit 11 is disposed below the discharge port.
[0025] The separation unit 11 includes a separation body 111, which has a funnel-shaped separation chamber 112. The bottom of the separation chamber 112 is a drain outlet 113. A permeable plate 114 is provided on the top of the separation body 111. The permeable plate 114 is provided with permeable holes 115. The gas-liquid mixture flowing out of the outlet is dispersed on the permeable plate 114 and enters the separation chamber 112 through the permeable holes 115. The gas and liquid are separated in the permeable plate 114 and the separation chamber 112. After separation, the gas is discharged through the exhaust port 121. The liquid accumulates at the bottom of the tank and is discharged through the drain port 141.
[0026] The core of the above solution lies in the separation unit 11 installed inside the separation tank. This unit includes a permeable plate 114 and a funnel-shaped separation chamber 112. The gas-liquid mixture enters the permeable plate 114 through the outlet of the feed pipe 15, and after being dispersed by the permeable holes 115, it enters the separation chamber 112. The gas, due to its lower density, escapes upward and is discharged through the exhaust port 121, while the liquid flows downward due to gravity and is discharged through the drain port 141. The design of the permeable plate 114 and the separation chamber 112 not only prolongs the residence time of the gas-liquid mixture, but also shortens the gas escape path, thereby significantly improving the separation efficiency. Specifically, after the gas falls from the outlet and comes into contact with the permeable plate 114, it disperses. After dispersion, the liquid level becomes lower and the droplets become smaller. The path for the gas to rise to the liquid surface is greatly shortened, and the shorter escape path allows the gas to quickly separate from the liquid, achieving the separation effect. The device incorporates a separation unit 11, which improves separation efficiency. It eliminates the need for multi-stage tanks, has a compact structure, reduces the complexity of traditional multi-stage tank systems, lowers equipment manufacturing and maintenance costs, effectively reduces gas residue, avoids explosion risks, and ensures the safety of equipment operation. It is suitable for sodium hypochlorite generators and other industrial scenarios requiring gas-liquid separation.
[0027] In one possible embodiment, the separation tank includes a gas collecting hood 12, a liquid collecting tank 14, and a separation cylinder 13; the gas collecting hood 12 is detachably mounted above the separation cylinder 13, and an exhaust port 121 is located at the top of the gas collecting hood 12; the liquid collecting tank 14 is detachably mounted at the bottom of the separation cylinder 13, and a drain port 141 is located below the liquid collecting tank. Optionally, the gas collecting hood 12 and the liquid collecting tank 14 are connected to the separation cylinder 13 via flanges; a sealing ring is provided between the flanges. Optionally, the interfaces of the gas collecting hood 12, the separation cylinder 13, and the liquid collecting tank 14 are threaded and connected by rotating and tightening; polytetrafluoroethylene raw material tape is wrapped around the thread surface or anaerobic sealant is applied; a flat sealing surface is provided at the end of the thread, which is then pressed together with a rubber gasket or a metal washer. The detachable gas collection hood 12, separation cylinder 13, and liquid collection tank 14, with flange or threaded connections, enable modular assembly and maintenance, significantly improving the ease of installation and maintenance efficiency of the equipment. The sealing measures, such as the sealing ring in the flange connection or the PTFE raw material tape and anaerobic sealant in the threaded connection, ensure the airtightness and liquid tightness between the components, effectively preventing gas and liquid leakage.
[0028] In one possible embodiment, the top dimension of the separating body 111 is adapted to the internal dimensions of the separating tank; the separating body 111 is connected to the separating tank. Optionally, the separating body 111 is connected to the separating tank by welding or gluing. Optionally, the upper edge of the separating body 111 is made of an elastic material such as rubber, and a positioning groove is provided on the inner wall of the separating tank. When an external force pushes the separating body 111 to move into the positioning groove within the separating tank, the elastic material, after depressurization, engages with the positioning groove to connect the separating body 111 and the separating tank, achieving the purpose of fixation. Through the above solution, the purpose of fixing the separating body 111 is achieved on the one hand, and liquid is prevented from passing through the gap between the separating body 111 and the separating tank on the other hand.
[0029] In one possible embodiment, the separation device 1 further includes a dispersing component; the dispersing component is disposed in the middle of the permeable plate 114; the dispersing component includes an umbrella portion 116 and a handle portion 117; the umbrella portion 116 is connected to the permeable plate 114 through the handle portion 117; the discharge port is disposed above the umbrella portion 116. The umbrella portion 116 of the dispersing component is located in the middle of the permeable plate 114, and its function is to uniformly disperse the liquid flowing down from the discharge port of the feed pipe 15 through the umbrella-shaped structure. When the gas-liquid mixture flows out from the discharge port, it first impacts the surface of the umbrella portion 116. Due to the inclined design of the umbrella portion 116, the liquid is guided to diffuse in all directions and is evenly distributed on the permeable plate 114, and then enters the separation chamber 112 through the permeable holes 115. This diversion design avoids the liquid from flowing into a certain area in a concentrated manner, ensuring that the gas-liquid mixture is evenly distributed on the permeable plate 114. The umbrella portion 116 is designed to guide the liquid to diffuse outward, shortening the path for the gas to escape from the liquid, and further improving the gas-liquid separation speed.
[0030] In one possible embodiment, a vent hole is provided in the middle of the permeable plate 114; the handle 117 is an internally hollow pipe, and the bottom of the handle 117 communicates with the vent hole; an outlet hole 118 is provided in the upper part of the handle 117 to prevent liquid on the permeable plate 114 from entering the outlet hole 118. Simultaneously, the outlet hole 118 is located below the umbrella part 116 to prevent liquid from the discharge port and splashed liquid from entering the outlet hole 118. This invention, by providing a vent hole in the middle of the permeable plate 114 and communicating it with the hollow handle 117 of the dispersing component, forms a gas discharge channel: the gas in the separation chamber 112 passes sequentially through the vent hole, the pipe of the handle 117, and the outlet hole 118, and is finally discharged from the exhaust port 121 at the top of the separation tank. This design solves the problem of residual gas discharge after separation by the permeable plate 114.
[0031] In one possible embodiment, the separation device 1 includes multiple separation units 11, which are arranged sequentially from top to bottom within a separation tank. The multiple separation units 11, arranged sequentially from top to bottom within the separation tank, form a multi-stage separation structure. The drain port 113 of the upper-stage separation unit 11 is located above the umbrella section 116 of the lower-stage separation unit 11. The gas-liquid mixture enters the first separation unit 11 from the top and undergoes initial separation through a permeable plate 114 and a funnel-shaped separation chamber 112: the gas escapes upwards, and the liquid flows downwards. The liquid enters the next separation unit 11, repeating the above separation process, while the gas gathers upwards through the exhaust channels of each separation unit 11 and is finally discharged from the exhaust port 121 at the top of the separation tank. Multi-stage separation extends the residence time of the gas-liquid mixture and optimizes the separation effect at each stage.
[0032] In one possible embodiment, the conical separation chamber 112 has a cone angle of α; 90°≤α≤120°; the permeable plate 114 is provided with multiple permeable holes 115; the multiple permeable holes 115 are evenly distributed along the edge of the permeable plate 114; the sum of the top-view projected areas of the permeable holes 115 is greater than or equal to the sum of the top-view projected areas of the discharge port, so that the total drainage volume of the permeable holes 115 per unit time is greater than or equal to the drainage volume of the discharge port. The even distribution of the permeable holes 115 along the edge of the permeable plate 114 allows the liquid flowing down from the permeable holes 115 to enter the upper part of the separation chamber 112 and then flow to the drain port 113, prolonging the residence time of the liquid; the selected range of the cone angle balances and avoids the liquid flowing down too quickly, while also avoiding liquid accumulation in the separation chamber 112. The drainage capacity of the permeable holes 115 is greater than the drainage capacity of the discharge port, which can prevent liquid from accumulating on the permeable plate 114, increasing the liquid level and preventing liquid blockage. Preferably, the drainage capacity of the leakage outlet 113 is greater than or equal to the drainage capacity of the water permeable hole 115.
[0033] In one possible embodiment, the separation device 1 is used in the electrolytic brine preparation sodium hypochlorite generator to produce sodium hypochlorite solution with a capacity of ≤370L per hour. The diameter of the separation cylinder 13 is set to 50-70mm; the height of the separator is 500-600mm; and the diameter of the drain port 113 of the separation unit 11 is 15-20mm. A total of 5-6 separation units 11 are arranged inside the separation cylinder 13. Calculations show that the gas content at the outlet is reduced by 99.9% compared to the hydrogen content at the inlet.
[0034] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A decentralized gas-liquid separation device, characterized in that: The separation device includes a separation tank; the bottom of the separation tank is provided with a drain port and the top is provided with an exhaust port; it also includes a feed pipe, which is disposed inside the tank of the separation tank and has a discharge port; a separation unit is disposed below the discharge port. The separation unit includes a separation body, which has a funnel-shaped separation cavity; the bottom of the separation cavity is a leakage outlet; a water-permeable plate is provided on the top of the separation body; and water-permeable holes are provided on the water-permeable plate.
2. The decentralized gas-liquid separation device according to claim 1, characterized in that: The separation tank includes a gas collecting hood, a liquid collecting tank, and a separation cylinder; the gas collecting hood is detachably installed above the separation cylinder, and the exhaust port is located at the top of the gas collecting hood; the liquid collecting tank is detachably installed at the bottom of the separation cylinder, and the drain port is located below the liquid collecting tank.
3. The decentralized gas-liquid separation device according to claim 1, characterized in that: The dimensions of the top of the separation body are adapted to the internal dimensions of the separation tank; The separation body is connected to the separation tank.
4. The decentralized gas-liquid separation device according to claim 1, characterized in that: The separation device further includes a dispersing component; the dispersing component is disposed in the middle of the permeable plate; the dispersing component includes an umbrella part and a handle part; the umbrella part is connected to the permeable plate through the handle part; the discharge port is disposed above the umbrella part.
5. A decentralized gas-liquid separation device according to claim 4, characterized in that: The permeable plate has a vent hole in the middle; the handle is a hollow pipe with the bottom of the handle connected to the vent hole; and the upper part of the handle has an air outlet.
6. A decentralized gas-liquid separation device according to claim 4, characterized in that: The separation device includes multiple separation units; the multiple separation units are arranged sequentially from top to bottom inside the separation tank; The drain outlet of the upper separation unit is located above the umbrella section of the lower separation unit.
7. A decentralized gas-liquid separation device according to claim 1, characterized in that: The separation cavity is conical, with a cone angle of α; 90°≤α≤120°.
8. A decentralized gas-liquid separation device according to claim 7, characterized in that: The permeable plate is provided with multiple permeable holes; the multiple permeable holes are evenly distributed along the edge of the permeable plate; the sum of the top-view projection areas of the permeable holes is greater than or equal to the sum of the top-view projection areas of the discharge port, so that the total drainage volume of the permeable holes per unit time is greater than or equal to the drainage volume of the discharge port.