Unpowered gas-water separation membrane assembly

Abstract

The utility model relates to an unpowered gas-water separation membrane component which is characterized by comprising a gas-liquid separation membrane upper membrane frame, a gas-liquid separation membrane lower membrane frame and a proton separation membrane, and the gas-liquid separation membrane upper membrane frame is detachably connected with the gas-liquid separation membrane lower membrane frame through a bolt; an upper membrane frame bolt hole and a lower membrane frame bolt hole are respectively formed in the gas-liquid separation membrane upper membrane frame and the gas-liquid separation membrane lower membrane frame relative to the positions of the bolts, and the proton separation membrane is fixed between the gas-liquid separation membrane upper membrane frame and the gas-liquid separation membrane lower membrane frame through the bolts. Specific gas or liquid is efficiently separated through the proton separation membrane, when the gas and the liquid in waste gas pass through the proton membrane, the liquid is isolated, and when the gas passes through the proton membrane, the gas-liquid mixture can be deeply purified to obtain high-quality gas, and by adopting the design, the effect of improving the separation efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the field of gas-liquid membrane separation technology and VOCs waste gas purification and treatment, and is generally used in the gas-liquid separation process in VOCs waste gas treatment, and in particular to a normal-pressure VOCs self-breathing gas proton separation membrane that isolates water vapor and is applied to VOCs treatment in oily wastewater collection and transportation systems in the petrochemical industry. Background Art

[0002] Some industrial waste gases contain large amounts of water vapor or other condensable gases, which may cause environmental problems such as acid rain and haze during the emission process; and some gases are produced in some chemical reactions. If these gases are not separated in time, they may affect the progress of the reaction or the quality of the product; therefore, the gas-liquid mixture produced in the chemical production process must be separated to obtain pure products or facilitate subsequent processing; however, traditional gas-liquid separation methods, such as gravity sedimentation, centrifugal separation, absorption, adsorption, etc., have problems such as low separation efficiency, large equipment size, complex operation, and high energy consumption. Therefore, in order to solve the above problems, it is particularly important to design a non-powered gas-water separation membrane component. Summary of the Invention

[0003] The purpose of this utility model is to provide a non-powered gas-liquid separation membrane module, which provides good working conditions for the subsequent processes of the gas-liquid separation device and improves the production efficiency and quality of the subsequent processes. The non-powered gas-liquid separation membrane module has the characteristics of high separation efficiency, energy saving and consumption reduction, simple operation, environmental protection and cleanliness, limited separation performance, good mechanical strength and stability.

[0004] In order to solve the above-mentioned technical problems, the utility model provides an unpowered gas-water separation membrane assembly, which is characterized in that it includes an upper membrane frame for gas-liquid separation membrane, a lower membrane frame for gas-liquid separation membrane and a proton separation membrane, the size of the upper membrane frame for gas-liquid separation membrane matches the inner diameter of the gas-water separation tower, the size of the lower membrane frame for liquid separation membrane matches the size of the upper membrane frame for gas-liquid separation membrane, the upper membrane frame for gas-liquid separation membrane is detachably connected to the lower membrane frame for gas-liquid separation membrane by bolts, upper membrane frame bolt holes and lower membrane frame bolt holes are respectively provided on the upper membrane frame for gas-liquid separation membrane and the lower membrane frame for gas-liquid separation membrane at positions relative to the bolts, and the proton separation membrane is fixed between the upper membrane frame for gas-liquid separation membrane and the lower membrane frame for gas-liquid separation membrane by bolts.

[0005] Further: the upper membrane frame of the gas-liquid separation membrane and the lower membrane frame of the gas-liquid separation membrane are composed of an outer circular frame, an inner circular frame, a central flow guide structure and a cross connection structure. The inner circular frame is arranged on the outside of the central flow guide structure, and the outer circular frame is arranged on the outside of the inner circular frame. The central flow guide structure and the inner circular frame, as well as the inner circular frame and the outer circular frame are connected into one through a cross connection structure. The proton separation membrane is arranged in the gap between the outer circular frame and the inner circular frame and between the inner circular frame and the central flow guide structure.

[0006] Furthermore: a liquid collecting trough is provided on the top of the central flow guide structure of the upper membrane frame of the gas-liquid separation membrane, and the liquid collecting trough is in a leaky shape. An upper drainage hole is opened in the central flow guide structure of the upper membrane frame of the gas-liquid separation membrane below the liquid collecting trough, and a lower drainage hole is opened on the central flow guide structure of the lower membrane frame of the gas-liquid separation membrane at a position relative to the upper drainage hole.

[0007] Furthermore: the bottom of the upper membrane frame of the gas-liquid separation membrane is provided with a boss structure connected thereto, and the top of the lower membrane frame of the gas-liquid separation membrane is provided with a groove structure matching the boss structure at a position relative thereto.

[0008] Furthermore, the proton separation membrane has a thickness of 1-10 μm, a pore size of 0.3-0.5 μm, and a porosity greater than 95%.

[0009] After adopting the above structure, the beneficial effects of the utility model are as follows:

[0010] 1. The utility model uses a proton separation membrane to efficiently separate specific gases or liquids. When the gas and liquid in the exhaust gas pass through the proton membrane, the liquid will be isolated. The gas passes through the proton membrane, which can deeply purify the gas-liquid mixture and obtain high-quality gas. This design improves the separation efficiency.

[0011] 2. The utility model can separate at room temperature due to the use of proton separation membranes. The separated substances do not undergo phase change. Compared with traditional separations (such as distillation and rectification) that require harsh conditions such as high temperature and high pressure, the energy consumption is greatly reduced. The proton membrane has a high gas flux and low resistance. The proton membrane separation process usually relies on driving forces such as pressure difference and concentration difference. It does not require complex mechanical devices and large amounts of energy input, and the equipment operating costs are low.

[0012] 3. The utility model is provided with a water collecting device and a drainage hole on the upper membrane frame and the lower membrane frame of the gas-liquid separation membrane. The liquid collected under working conditions flows back to the lower space of the gas-liquid separation tower through the drainage hole. By adopting this structure, the practical performance is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0014] Figure 1 This is the structure diagram of the unpowered gas-liquid separation membrane component of the utility model

[0015] Figure 2 This is the front view of the upper frame of the unpowered gas-liquid separation membrane assembly of the utility model

[0016] Figure 3 This is the upper side view of the unpowered gas-liquid separation membrane component of the utility model

[0017] Figure 4 This is the front view of the lower frame of the unpowered gas-liquid separation membrane assembly of the utility model

[0018] Figure 5 This is the lower side view of the unpowered gas-liquid separation membrane component of the utility model

[0019] In the figure: 1 is the upper membrane frame of the gas-liquid separation membrane, 2 is the bolt hole of the upper membrane frame, 3 is the liquid collecting tank, 4 is the groove structure, 5 is the lower membrane frame of the gas-liquid separation membrane, 6 is the bolt hole of the lower membrane frame, 7 is the lower drainage hole, 8 is the boss structure, 10 is the bolt, and 11 is the upper drainage hole. DETAILED DESCRIPTION

[0020] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5The illustrated unpowered gas-water separation membrane assembly includes an upper membrane frame 1 for the gas-liquid separation membrane, a lower membrane frame 5 for the gas-liquid separation membrane, and a proton separation membrane. The upper membrane frame matches the inner diameter of the gas-water separation tower, while the lower membrane frame matches the upper membrane frame. The upper membrane frame is detachably connected to the lower membrane frame via bolts 10. Upper and lower membrane frames are provided with upper and lower membrane frame bolt holes 2 and 6, respectively, at positions corresponding to the bolts. The proton separation membrane is secured between the upper and lower membrane frames via bolts. The upper and lower frames of the unpowered gas-liquid separation membrane assembly are made of PP or stainless steel and are bolted to the proton membrane to form a single unit. This provides favorable operating conditions for subsequent processes in the gas-liquid separation device, improving production efficiency and quality. The unpowered gas-liquid separation membrane assembly has the characteristics of high separation efficiency, energy saving and consumption reduction, simple operation, environmental protection and cleanliness, limited separation performance, good mechanical strength and stability. This utility model uses a proton separation membrane to efficiently separate specific gases or liquids. When the gas and liquid in the exhaust gas pass through the proton membrane, the liquid will be isolated. The gas passes through the proton membrane, which can deeply purify the gas-liquid mixture and obtain high-quality gas. By adopting this design, the separation efficiency is improved.

[0021] like Figure 1 、 Figure 3 and Figure 5 The upper membrane frame of the gas-liquid separation membrane and the lower membrane frame of the gas-liquid separation membrane shown are composed of an outer circular frame, an inner circular frame, a central flow guide structure and a cross connection structure. The inner circular frame is arranged on the outside of the central flow guide structure, and the outer circular frame is arranged on the outside of the inner circular frame. The central flow guide structure and the inner circular frame, as well as the inner circular frame and the outer circular frame are connected as one through a cross connection structure. The proton separation membrane is arranged in the gap between the outer circular frame and the inner circular frame and between the inner circular frame and the central flow guide structure.

[0022] like Figure 1 、 Figure 2 and Figure 4 The central flow guide structure of the upper membrane frame of the gas-liquid separation membrane is shown with a liquid collection trough 3 at the top. The trough is in the shape of a leak. Below the trough, an upper drainage hole 11 is provided in the central flow guide structure of the upper membrane frame of the gas-liquid separation membrane. A lower drainage hole 7 is provided in the central flow guide structure of the lower membrane frame of the gas-liquid separation membrane, located opposite the upper drainage hole. This utility model incorporates water collection devices and drainage holes on both the upper and lower membrane frames of the gas-liquid separation membrane. Liquid collected under operating conditions flows back through the drainage holes to the lower space of the gas-liquid separation tower. This structure enhances practical performance.

[0023] like Figure 3 and Figure 5 The bottom of the upper membrane frame of the gas-liquid separation membrane is provided with a boss structure 8 integrally connected thereto, and the top of the lower membrane frame of the gas-liquid separation membrane is provided with a groove structure 4 matching the boss structure at a position relative to the boss structure.

[0024] The utility model adopts a gas proton separation membrane with a polyimide membrane as the skeleton. The thickness of the proton separation membrane is 1-10 μm, the pore size is 0.3-0.5 μm, and the porosity is greater than 95%. The gas proton membrane with the polyimide membrane as the skeleton is modified by metal nanoparticles on the polyimide membrane. Due to the use of the proton separation membrane, the utility model can be separated at room temperature without phase change of the separated substances. Compared with traditional separations (such as distillation and rectification) under harsh conditions such as high temperature and high pressure, the energy consumption is greatly reduced. The proton membrane has a high gas flux and the resistance of the proton membrane is very low. The proton membrane separation process usually relies on driving forces such as pressure difference and concentration difference, does not require complex mechanical devices and a large amount of energy input, and has a low equipment operating cost.

[0025] The above are only preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be pointed out that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should be considered within the scope of protection of the present invention.

Claims

1. A non-powered gas-water separation membrane assembly, characterized in that: The invention comprises an upper membrane frame (1) of a gas-liquid separation membrane, a lower membrane frame (5) of a gas-liquid separation membrane and a proton separation membrane. The size of the upper membrane frame of the gas-liquid separation membrane matches the inner diameter of the gas-water separation tower, the size of the lower membrane frame of the liquid separation membrane matches the size of the upper membrane frame of the gas-liquid separation membrane, the upper membrane frame of the gas-liquid separation membrane is detachably connected to the lower membrane frame of the gas-liquid separation membrane by bolts (10), upper membrane frame bolt holes (2) and lower membrane frame bolt holes (6) are respectively provided on the upper membrane frame of the gas-liquid separation membrane and the lower membrane frame of the gas-liquid separation membrane at positions relative to the bolts, and the proton separation membrane is fixed between the upper membrane frame of the gas-liquid separation membrane and the lower membrane frame of the gas-liquid separation membrane by bolts.

2. The unpowered gas-water separation membrane assembly according to claim 1, characterized in that: The upper membrane frame of the gas-liquid separation membrane and the lower membrane frame of the gas-liquid separation membrane are composed of an outer circular frame, an inner circular frame, a central flow guide structure and a cross connection structure. The inner circular frame is arranged on the outside of the central flow guide structure, and the outer circular frame is arranged on the outside of the inner circular frame. The central flow guide structure and the inner circular frame, as well as the inner circular frame and the outer circular frame are connected as one through a cross connection structure. The proton separation membrane is arranged in the gap between the outer circular frame and the inner circular frame and between the inner circular frame and the central flow guide structure.

3. The unpowered gas-water separation membrane assembly according to claim 2, characterized in that: A liquid collecting trough (3) is provided on the top of the central flow guide structure of the upper membrane frame of the gas-liquid separation membrane. The liquid collecting trough is in a leaky shape. An upper drainage hole (11) is provided in the central flow guide structure of the upper membrane frame of the gas-liquid separation membrane below the liquid collecting trough. A lower drainage hole (7) is provided on the central flow guide structure of the lower membrane frame of the gas-liquid separation membrane at a position relative to the upper drainage hole.

4. The unpowered gas-water separation membrane assembly according to claim 1, characterized in that: The bottom of the upper membrane frame of the gas-liquid separation membrane is provided with a boss structure (8) connected thereto in one piece, and the top of the lower membrane frame of the gas-liquid separation membrane is provided with a groove structure (4) matching the boss structure at a position relative to the boss structure.

5. The unpowered gas-water separation membrane assembly according to claim 1, characterized in that: The proton separation membrane has a thickness of 1-10 μm, a pore size of 0.3-0.5 μm, and a porosity greater than 95%.

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