Membrane group skid device for pervaporation dehydration of sulfolane aqueous solution

Abstract

The utility model relates to the technical field of module unit prying blocks, and discloses a sulfolane aqueous solution pervaporation dehydration-oriented membrane group prying block device, which is provided with a main material inlet pipeline and a main material outlet pipeline which are arranged on a membrane prying frame, and the membrane prying frame is of a plurality of interlayer structures which are transversely or vertically arranged. Each interlayer structure is connected with at least one module unit, and the multiple module units are connected between the main material inlet pipeline and the main material outlet pipeline in series. And the dehydrated products reaching the standard are conveyed to a product tank. The lower end of the membrane assembly is connected with a penetrating fluid tank, and negative pressure operation is provided for the penetrating fluid tank through a vacuum pump, so that water removed through pervaporation enters the penetrating fluid tank. The membrane group skid device disclosed by the utility model is uniform in stress, high in product recovery rate, convenient to mount and dismount, flexible to operate, small in occupied space and convenient and fast to maintain and maintain, and is controlled in a unitized manner.

Description

TECHNICAL FIELD

[0001] The utility model relates to the module unit pry block technical field, especially to the membrane group pry block device for sulfolane aqueous solution pervaporation dehydration. BACKGROUND

[0002] The statements in this part are only provided with the background technology related to the utility model, and do not necessarily constitute prior art.

[0003] Sulfolane is a kind of excellent multi-effect solvent, in addition to being used as aromatic hydrocarbon extraction solvent, it can also be used as the solvent of various organic reactions, extractant.It is widely used in hydrogenation, hydrolysis, dehydration, sulfonation, diazotization and polymerization reaction process, and is an important chemical raw material.In the sulfolane-containing wastewater generated in chemical process, sulfolane content is high, and direct discharge not only pollutes the environment, but also causes resource waste.Therefore, efficient and energy-saving recovery of sulfolane in wastewater is a new technology urgently needed to realize wastewater resource and harmlessness.Membrane separation technology has the advantages of low energy consumption, simple operation, environmental friendliness and wide application range, and is an ideal solvent dehydration technology.

[0004] In addition to the membrane material itself and its operating conditions, selecting reasonable equipment and combination mode of module unit is crucial to membrane separation effect.In actual industrial application, the corresponding membrane area requirement and module unit quantity need to be calculated according to the treatment capacity and separation requirement of raw material liquid.In actual industrial application, the treatment capacity of raw material liquid is large, generally a plurality of module units need to be used for separation, and the arrangement and combination of module units still have problems such as uneven stress, large volume, inconvenient management and the like. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a kind of membrane group pry block device for sulfolane aqueous solution pervaporation dehydration, which is characterized by uniform overall stress, high recovery rate, easy to install and disassemble, unit control, flexible operation, small floor space, and convenient and fast maintenance.

[0006] The technical scheme adopted by the utility model is: the membrane group pry block device for sulfolane aqueous solution pervaporation dehydration has main material inlet pipeline and main material outlet pipeline arranged on membrane pry frame, the membrane pry frame is a plurality of layer structures arranged horizontally or vertically, and at least one module unit is connected on each layer structure, and a plurality of module units are connected in series between main material inlet pipeline and main material outlet pipeline.

[0007] In the technical scheme, each module unit is fixedly connected on layer structure or top plate or bottom plate of membrane pry frame by a connecting rod.

[0008] In the technical solution, each module unit is connected to a permeate liquid branch pipe on the side thereof, and the permeate liquid branch pipes are connected to a permeate liquid main pipe.

[0009] In the technical solution, a sampling port is arranged on the permeate liquid main pipe.

[0010] In the technical solution, the steam inlet pipe and the steam outlet pipe are arranged on one side of the membrane pry frame, the vacuum pump and the permeate liquid tank are arranged between the steam inlet pipe and the steam outlet pipe, and the pipes between the steam inlet pipe and the steam outlet pipe are connected to the middle positions of the partition structures to connect the module units.

[0011] In the technical solution, the module units are arranged in a multi-row structure on the membrane pry frame, and the module units on the odd-numbered layers are opposite to the module units on the even-numbered layers in the direction.

[0012] In the technical solution, the left-right distance between two adjacent module units in the membrane pry frame is 700-800 mm, and the up-down distance is 900-1000 mm.

[0013] In the technical solution, the membrane pry frame is made of a profile steel.

[0014] In the technical solution, a ball valve, a temperature gauge, a pressure gauge and a flow meter are further arranged on the main material inlet pipe.

[0015] In the technical solution, the main material inlet pipe is arranged above the base of the membrane pry frame to support the pry block device of the module unit.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The membrane pry frame is arranged at the middle part of the symmetrically arranged module units, and is used for fixing and supporting each part of each module unit and the main pipe, so that the membrane pry frame structure is compact and the stress is uniform, the membrane pry frame occupies a small area in the actual application process, the module unit is fixed stably, and the maintenance and management are convenient.

[0018] 2. The upper and lower four-layer structure is adopted, the directions of the module units on the first layer and the third layer are opposite to the directions of the module units on the second layer and the fourth layer, the pipe material required by the main material pipe is saved, the installation of the module unit is facilitated, and the operation is simple.

[0019] 3. The number of single module units is 12, and is uniformly distributed in the membrane pry frame. The left distance between the adjacent two single module units is 700-800mm, and the up and down distance is 900-1000mm. The structure is clear, and the problems encountered in the sulfoxane aqueous solution pervaporation dehydration process can be quickly and clearly processed, and the work efficiency is improved.

[0020] 4. Ball valves are arranged at the inlet and outlet of the module unit, operation is flexible, the number of module units can be reasonably and conveniently adjusted according to the actual working condition, so that better separation effect is achieved. When the performance of a certain module unit is reduced, the module unit can be individually cut off for relevant maintenance treatment.

[0021] In summary, the membrane group pry block device for sulfoxane aqueous solution pervaporation dehydration of the utility model adopts a series connection mode, is scientifically and reasonably arranged, and the gravity separation is reasonable, which is beneficial to the stability of the module unit, realizes pry blockization, thereby being beneficial to safe and convenient operation and reasonable and clear management, so that the sulfoxane recovery rate is high, installation and dismounting are convenient, unit control is realized, operation is flexible, the occupied space is small, and maintenance and maintenance are convenient and fast. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a three-dimensional structure view of one direction of one embodiment of the membrane group pry block device for sulfoxane aqueous solution pervaporation dehydration;

[0023] Figure 2 It is a front view of the embodiment of Figure 1 ;

[0024] Figure 3 It is a left view of the embodiment of Figure 1 ;

[0025] Figure 4 It is a top view of the embodiment of Figure 1 ;

[0026] Wherein: 1 is a main material inlet pipeline, 2 is a ball valve, 3 is a membrane pry frame, 4 is a connecting rod; 5 is a layer structure, 6 is a steam inlet pipeline, 7 is a steam outlet pipeline, 8 is a pipeline clamp, 9 is a main material outlet pipeline, 10 is a permeate total pipe, 11 is a sampling port; 12 is a permeate branch pipe, 13 is a base, 14 is a module unit, 15 is a temperature table; 16 is a pressure table, 17 is a flow table. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described below in detail, examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the combination or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, in the description process of the embodiments of the present application, the device position relationship of "upper", "lower", "front", "rear", "left", "right" and the like in all the drawings is based on Figure 1 as the standard.

[0029] As shown in Figure 1 , the membrane group prizing block device for sulfolane aqueous solution pervaporation dehydration has a main material inlet pipeline 1 and a main material outlet pipeline arranged on the membrane prying frame 3, the membrane prying frame 3 is a plurality of layer structures 5 arranged horizontally or vertically, and at least one module unit 14 is connected on each layer structure 5, and a plurality of module units 14 are connected in series between the main material inlet pipeline 1 and the main material outlet pipeline, the connection mode can arrange the plurality of module units 14 in series and uniformly between the plurality of layer structures 5 of the membrane prying frame 3, the series module unit is beneficial to improve the flow rate on the membrane surface, reduce the concentration polarization, improve the separation effect, thereby improve the uniformity of the module unit 14 layout and facilitate the realization of the membrane group prizing block, the structure of the device is clear, the installation, disassembly and transportation management of the module unit are convenient, the practical operation steps are simple, and the land occupation is small.

[0030] In at least one embodiment, as Figure 1 shown, each module unit 14 is fixedly connected to the layer structure 5 or the top plate or bottom plate of the membrane prying frame 3 through a connecting rod 4, thereby ensuring that the entire module unit prizing block device is relatively stable and firm. In the specific implementation process, the connecting rod 4 and the layer structure 5 can be fixed or directly welded on the membrane prying frame 3.

[0031] In at least one embodiment, Figure 1 It is also shown that each module unit 14 is connected to a permeate branch pipe 12 on the side surface thereof, and a plurality of permeate branch pipes 12 are connected to a permeate main pipe 10.

[0032] In at least one embodiment, a sampling port 11 is provided on the permeate header 10.

[0033] In at least one embodiment, Figure 1 , Figure 2 , Figure 3 It is also shown that steam inlet pipes 6 and steam outlet pipes 7 are arranged in parallel on one side of the membrane pry frame 3, a vacuum pump and a permeate tank (not shown in the figure) are arranged between the steam inlet pipes 6 and the steam outlet pipes 7, and the pipes between the steam inlet pipes 6 and the steam outlet pipes 7 are connected to the middle of the partition structure 5 respectively to connect several module units 14. The structure is designed to provide negative pressure operation for the permeate tank by using the vacuum pump to make the permeated water removed by vaporization enter the permeate tank, so that the steam pipes can be buried inside the membrane pry frame 3, facilitating transportation, maintenance and installation. In the specific implementation process, the top end of a single module unit 14 is a permeate discharge port, and the permeate discharge ports of single module units 14 in the same direction are collected on a permeate branch pipe 12, and the permeate branch pipes 12 on the front and back sides of the membrane pry frame 3 are collected on the permeate header 10 on the right side of the membrane pry frame 3.

[0034] In at least one embodiment, Figures 1 to 4 It can be seen that the module units 14 are arranged in a multi-column structure on the membrane pry frame 3, and the orientations of the module units 14 on the odd-numbered layers are opposite to those on the even-numbered layers, so as to reduce the length of the pipe layout when connected in series and reduce the material. In the specific implementation, as shown in Figure 2 the module units 14 are connected in an alternating direction and are evenly distributed in 3x4 in the membrane pry frame 3, and are arranged in four layers up and down and three columns left and right. One layer, three layers, and two layers, four layers of membrane assemblies are opposite in orientation to facilitate the connection of the main material pipe, reduce the use of pipe materials, make the membrane pry frame structure more clear, and the operation steps are simple and easy to use.

[0035] In at least one embodiment, Figure 1 and Figure 2 It is shown that the left-right distance between two adjacent module units 14 in the membrane pry frame 3 is 700-800 mm, and the up-down distance is 900-1000 mm. The number of module units 14 is 12, and they are evenly distributed in the membrane pry frame 3. The left-right distance between two adjacent module units 14 is 800 mm, and the up-down distance is 950 mm. The structure is clear, and problems encountered in the process of sulfolane aqueous solution permeation vaporization dehydration can be quickly and clearly handled, and the work efficiency is improved.

[0036] In at least one embodiment, the membrane pry frame 3 is made of profiled steel as a whole, which has low overall cost and is convenient to manufacture and process.

[0037] In at least one embodiment, Figure 1 It is also shown that a ball valve 2, a thermometer 15, a pressure gauge 16 and a flow meter 17 are arranged on the main material inlet pipe 1, and a flow control device is arranged at the steam inlet of the steam inlet pipe 6 and a pressure control device is arranged at the steam outlet of the steam outlet pipe 7. The thermometer is used to check whether the temperature of the main material inlet pipe 1 meets the membrane separation range. When the performance of a certain membrane assembly is reduced, it can be individually cut off for relevant maintenance treatment, and the normal work of other membrane assemblies is not affected, so as to achieve the effect of unitized control.

[0038] In at least one embodiment, the main material inlet pipe 1 is arranged above the base 13 of the membrane pry frame 3, so as to support the whole module unit pry block device. In the specific implementation process, a bolt connection position can be reserved on the base 13 to improve the structural stability. The left and right sides of the module unit 14 are respectively connected on the connecting rod 4 and / or the partition structure 5 in the membrane pry frame 3 through bolts and nuts.

[0039] The embodiments of the utility model discloses the preferable embodiment, but is not limited to this, the ordinary skill in the art, the spirit of the utility model is appreciated according to the above-mentioned embodiment, and different extension and change are made, but as long as not departing from the spirit of the utility model, all are within the protection scope of the utility model.

Claims

1. A membrane modular skid device for pervaporation dehydration of sulfolane aqueous solution, comprising a main material inlet pipe (1) and a main material outlet pipe (9) arranged on a membrane skid (3), characterized in that: The membrane skid (3) is a plurality of partition structures (5) arranged horizontally or vertically, and at least one module unit (14) is connected on each partition structure (5), and several module units (14) are connected in series between the main material inlet pipe (1) and the main material outlet pipe (9).

2. The membrane skid device for pervaporation dehydration of sulfolane aqueous solution according to claim 1, characterized in that: Each of the module units (14) is fixedly connected to the partition structure (5) or the top or bottom plate of the membrane skid (3) by a connecting rod (4).

3. The membrane skid device for pervaporation dehydration of sulfolane aqueous solution according to claim 2, characterized in that: Each module unit (14) is connected to a permeate branch pipe (12) on its side, and several permeate branch pipes (12) are connected to the permeate main pipe (10).

4. The membrane microstructure skid device for pervaporation dehydration of sulfolane aqueous solution according to claim 3, characterized in that: A sampling port (11) is provided on the main permeate pipe (10).

5. The membrane microstructure skid device for pervaporation dehydration of sulfolane aqueous solution according to claim 3, characterized in that: A steam inlet pipe (6) and a steam outlet pipe (7) are arranged in parallel on one side of the membrane skid (3). A vacuum pump and a permeate tank are arranged between the steam inlet pipe (6) and the steam outlet pipe (7). The pipes between the steam inlet pipe (6) and the steam outlet pipe (7) are respectively connected and pass through the middle position of the partition structure (5) to connect several module units (14).

6. The membrane skid device for pervaporation dehydration of sulfolane aqueous solution according to any one of claims 1-5, characterized in that: The module units (14) are arranged in a multi-row structure on the membrane skid (3), and the module units (14) on the odd-numbered layers are oriented oppositely to those on the even-numbered layers.

7. The membrane skid device for pervaporation dehydration of sulfolane aqueous solution according to claim 6, characterized in that: The horizontal distance between two adjacent module units (14) located within the membrane skid (3) is 700-800mm, and the vertical distance is 900-1000mm.

8. The membrane skid device for pervaporation dehydration of sulfolane aqueous solution according to claim 1, characterized in that: The membrane skid (3) is made entirely of structural steel.

9. The membrane microstructure skid device for pervaporation dehydration of sulfolane aqueous solution according to claim 6, characterized in that: A ball valve (2), a thermometer (15), a pressure gauge (16) and a flow meter (17) are also provided on the main material inlet pipe (1).

10. The membrane skid device for pervaporation dehydration of sulfolane aqueous solution according to claim 9, characterized in that: The main material inlet pipe (1) is located above the base (13) of the membrane skid (3).

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