Cage-shaped photoreactor for emulsion polymerization

Abstract

The utility model discloses a cage-shaped photoreactor for emulsion polymerization, and belongs to the technical field of polymer synthesis equipment. The reactor comprises a barrel-shaped shell box and a cage-shaped reactor arranged in the barrel-shaped shell box; a discharge port of the cage-shaped reactor extends out of the top of the barrel-shaped shell box, and a feed port of the cage-shaped reactor extends out of the bottom of the barrel-shaped shell box; a plurality of high-reflection mirror faces are arranged on the circumferential wall face of the barrel-shaped shell box, and LED lamp bead sets are arranged on the high-reflection mirror faces. A shell box opening door is arranged on the circumferential wall surface of the barrel-shaped shell box; the barrel-shaped shell box is provided with an air blower connector and an air outlet. The air blower connector and the air outlet are formed in the barrel-shaped shell box, and a traditional water cooling system is changed into an air cooling system which is low in cost and does not affect optical radiation. The light source utilization rate can be greatly improved, the heat dissipation load and the light source radiation attenuation rate of the photoreactor are reduced, materials can receive light more uniformly, and finally the production efficiency is improved and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of polymer synthesis equipment and relates to a cage-shaped photoreactor for emulsion polymerization. Background Art

[0002] The tubular photoinitiated inverse emulsion polymerization process, with its unique low-temperature startup ability, high reaction rate, and continuous production process, shows great potential in the field of chemical synthesis. However, while pursuing high efficiency and continuity, this process also faces severe challenges in controlling reaction stability. Once the reaction gets out of control, it not only affects product quality but also poses a threat to production safety. To overcome this problem, reactor design becomes the core key. Traditionally, continuous photoreactors mostly use reaction channels made of quartz glass, such as straight tubes, discs, and fine capillary structures, which provide a uniform light environment and a smooth transmission path for reactants. However, these designs have bottlenecks in light utilization efficiency, and some light is lost at the interface and fails to fully exert its excitation potential. In terms of ultraviolet light sources, although high-pressure mercury lamps can provide strong ultraviolet radiation, their high heat output becomes a heavy burden on the heat dissipation system and needs to be regulated through complex circulating water cooling devices, which not only increases energy consumption and costs but also may affect the light source stability due to water quality fluctuations.

[0003] Traditional photoreactors have the following deficiencies: First, the low light utilization efficiency of quartz glass devices as reaction sites results in most of the light power being wasted; second, high-pressure mercury lamps as ultraviolet light sources generate a lot of heat, resulting in a high heat dissipation load; third, the high cost of water cooling and the change in water quality will cause a light absorption effect, resulting in the radiation attenuation of the light source. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the technical problems of low light utilization, high heat dissipation load, and high water cooling cost of traditional photoreactors in the prior art, and to provide a cage-shaped photoreactor for emulsion polymerization.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] In the first aspect, the utility model provides a cage-shaped photoreactor for emulsion polymerization, including a barrel-shaped shell box and a cage-shaped reactor arranged in the barrel-shaped shell box; the discharge port of the cage-shaped reactor extends out of the top of the barrel-shaped shell box, and the feed port of the cage-shaped reactor extends out of the bottom of the barrel-shaped shell box; a plurality of highly reflective mirror surfaces are arranged on the circumferential inner wall surface of the barrel-shaped shell box, and LED lamp bead groups are arranged on the highly reflective mirror surfaces; a shell box door is arranged on the circumferential wall surface of the barrel-shaped shell box; a blower interface and an air outlet are arranged on the barrel-shaped shell box.

[0007] Further improvements are as follows:

[0008] The cage reactor includes an upper claw-shaped glass multi-pass and a lower claw-shaped glass multi-pass; a glass straight pipe is connected between the upper claw-shaped glass multi-pass and the lower claw-shaped glass multi-pass through a flange; a discharge port is arranged on the upper claw-shaped glass multi-pass, and a feed port is arranged on the lower claw-shaped glass multi-pass.

[0009] The flange is a molded fiberglass flange, an adhesive flange, a loose flange or a special ball port flange.

[0010] The glass straight pipe, the upper claw-shaped glass multi-pass and the lower claw-shaped glass multi-pass are all made of quartz glass.

[0011] The feed port is connected with a plunger pump.

[0012] The opening of the shell box is of a double-door structure.

[0013] A plurality of support legs are arranged at the bottom of the barrel-shaped shell box.

[0014] A hub is arranged at the lower part of the support leg.

[0015] The LED lamp bead group is connected with a numerical control system.

[0016] The barrel-shaped shell box is made of metal; the high-reflection mirror surface is a curved glass mirror.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model discloses a cage-shaped photoreactor for emulsion polymerization. The cage-shaped photoreactor is arranged in a barrel-shaped shell box. The cage-shaped photoreactor 1 is a place for material flow and reaction. The photoreactor with this structure increases the light radiation area and improves the light radiation utilization rate; a plurality of groups of high-reflection mirror surfaces are arranged on the inner wall surface of the barrel-shaped shell box, and LED lamp bead groups are arranged on the high-reflection mirror surfaces. The LED lamp bead groups have low power and do not generate heat, reducing the heat dissipation load and power consumption cost. Moreover, several high-reflection mirror surfaces cover the inside of the barrel-shaped shell box in a large area, enabling the light of the LED lamp group to be continuously reflected inside the barrel-shaped shell box, thereby improving the light uniformity and light utilization rate of the flowing material in the cage-shaped photoreactor; and a blower interface and an air outlet are arranged on the barrel-shaped shell box, changing the traditional water cooling system to an air cooling system with low cost and not affecting light radiation, reducing the operation and maintenance cost of the cooling system and avoiding the attenuation of light radiation. The utility model can greatly improve the light source utilization rate, reduce the heat dissipation load and the light source radiation attenuation rate of the photoreactor, enable the material to receive light more uniformly, and finally improve the production efficiency and reduce the production cost.

[0019] Further, the cage reactor includes an upper claw-shaped glass multi-pass and a lower claw-shaped glass multi-pass, which are connected by a glass straight pipe through a flange. Several glass straight pipes are arranged vertically in a ring. The upper and lower ends of each pipe are connected to the claw-shaped glass multi-pass through a flange. After connection, the shape is similar to a cage, which can increase the light-receiving area. The upper claw-shaped glass multi-pass and the lower claw-shaped glass multi-pass divide the material flow in each glass straight pipe or converge the materials in each straight pipe.

[0020] Further, several support legs are provided at the bottom of the barrel-shaped shell box, and hubs are provided at the lower parts of the support legs, enabling the utility model to move flexibly.

[0021] Further, the LED lamp bead group is connected to a numerical control system, and the light intensity of the LED lamp group can be adjusted through the numerical control system.

[0022] Further, the feed inlet is connected to a plunger pump, which provides power for the material flow during the reaction. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic structural diagram of the barrel-shaped shell box in a cage-shaped photoreactor for emulsion polymerization in the present utility model;

[0025] Figure 2 It is a schematic structural diagram of the cage reactor in a cage-shaped photoreactor for emulsion polymerization in the present utility model.

[0026] Wherein: 1 - cage reactor; 2 - barrel-shaped shell box; 11 - upper claw-shaped glass multi-pass; 12 - glass straight pipe; 13 - flange; 14 - discharge port; 15 - feed inlet; 16 - lower claw-shaped glass multi-pass; 21 - first mounting hole; 22 - shell box door; 23 - first blower interface; 24 - support leg; 25 - highly reflective mirror surface; 26 - second mounting hole; 27 - second blower interface; 28 - hub. Detailed Embodiments

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0029] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the embodiments of the present utility model, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0031] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0032] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] The following further describes the present utility model in detail with reference to the accompanying drawings:

[0034] See Figure 1 , an embodiment of the present utility model provides a cage-shaped photoreactor for emulsion polymerization, which includes a barrel-shaped shell box 2 made of metal. A first mounting hole 21 is provided at the top of the barrel-shaped shell box 2, and a second mounting hole 26 is provided at the bottom for mounting the cage-shaped reactor 1; the cage-shaped reactor 1 includes an upper claw-shaped glass multi-pass 11 and a lower claw-shaped glass multi-pass 16; a glass straight pipe 12 is connected between the upper claw-shaped glass multi-pass 11 and the lower claw-shaped glass multi-pass 16 through a flange. The flange is a molded fiberglass flange, an adhesive flange, a loose flange or a special spherical flange. The glass straight pipe 12, the upper claw-shaped glass multi-pass 11 and the lower claw-shaped glass multi-pass 16 are all made of quartz glass; a discharge port 14 is provided on the upper claw-shaped glass multi-pass 11, and a feed port 15 is provided on the lower claw-shaped glass multi-pass 16; during the reaction, the feed port 15 is connected to a plunger pump to provide the power for the material flow. After the reaction is completed and the reaction material is drained, a plunger pump is used to pump a cleaning liquid into the cage-shaped reactor 1 for cleaning; the discharge port 14 is connected to a product detection tank for product detection and sampling. The discharge port 14 of the cage-shaped reactor 1 extends out of the first mounting hole 21 of the barrel-shaped shell box 2, and the feed port 15 of the cage-shaped reactor 1 extends out of the second mounting hole 26 of the barrel-shaped shell box 2; a plurality of high-reflection mirrors 25 are provided on the circumferential wall surface of the barrel-shaped shell box 2, and an LED lamp bead group is provided on the high-reflection mirror 25. The LED lamp bead group is connected to a numerical control system; the high-reflection mirror 25 is a curved glass mirror, and the specific material is not limited but has a super-high light reflection efficiency and can reflect ultraviolet light. A shell box door 22 is provided on the circumferential wall surface of the barrel-shaped shell box 2, and the shell box door 22 is a double-door structure; a first blower interface 23 is provided at the top of the barrel-shaped shell box 2, and a second blower interface 27 is provided at the bottom of the barrel-shaped shell box 2. When the first blower interface 23 is connected to an air-cooled blower, the second blower interface 27 is the air outlet; when the second blower interface 27 is connected to an air-cooled blower, the first blower interface 23 is the air outlet.

[0035] A plurality of support legs 24 are provided at the bottom of the barrel-shaped shell box 2. A wheel hub 28 is provided at the lower part of the support leg 24.

[0036] Compared with many continuous photoreactors used in inverse emulsion polymerization, the present utility model has at least the following three beneficial effects: First, the cage reactor 1 includes an upper claw-shaped glass multi-pass 11 and a lower claw-shaped glass multi-pass 16, which are connected by a glass straight pipe 12 through a flange. Several glass straight pipes 12 are arranged in a vertical ring. The upper and lower ends of each pipe are connected to the claw-shaped glass multi-pass through a flange. After connection, the shape is similar to a cage, which can increase the light-receiving area. The upper claw-shaped glass multi-pass 11 and the lower claw-shaped glass multi-pass 16 split the material flow in each glass straight pipe or converge the materials in each straight pipe. The cage reactor 1 made of quartz glass combined with the high-reflection mirror surface 25 inside the barrel-shaped shell box 2 can maximize the light source utilization rate and the uniformity of the light received by the materials in the pipe; Second, the ultraviolet light source is changed from a high-power and severely heat-generating high-pressure mercury lamp to a lower-power and non-heating ultraviolet LED lamp group, which reduces the heat dissipation load and power consumption cost of the device. And the LED lamp bead group is connected to a numerical control system, and the light intensity of the LED lamp group can be adjusted through the numerical control system.; Third, the barrel-shaped shell box 2 is connected to an air-cooling blower to achieve an air-cooling effect, reduce the operation and maintenance cost of the cooling system, and avoid the attenuation of light radiation.

[0037] The following further illustrates the present utility model with specific embodiments:

[0038] The main component parameters of the present utility model are:

[0039] 1. A number of quartz glass straight pipes 12 (inner diameter: 45 mm, outer diameter: 50 mm, length 150 cm);

[0040] 2. The upper claw-shaped glass multi-pass 11 and the lower claw-shaped glass multi-pass 16 (inner diameter: 45 mm, outer diameter: 50 mm);

[0041] 3. A number of flanges (inner diameter 55 mm);

[0042] 4. The barrel-shaped shell box 2 (length 100 cm * width 100 cm * height 200 cm);

[0043] Reaction material preparation: The aqueous phase and the oil phase are respectively prepared according to Table 1, and then emulsified at a ratio of aqueous phase / oil phase = 2 / 3 to form a raw material in the form of a water-in-oil inverse emulsion, which is pumped into a sealed liquid storage tank. After repeated decompression - nitrogen purging to remove dissolved oxygen, it is ready for use. The viscosity of the test raw material exceeds 198 mPa·s.

[0044] Process steps: The material is pumped from the liquid storage tank into the cage reactor (1) through a plunger pump, and the LED lamp bead group is turned on to start the photoreaction production.

[0045] Table 1

[0046]

[0047]

[0048] After continuous production for 12 h, performance detection was carried out:

[0049] The viscosity of the sampled detection was 69×3 mPa·s;

[0050] 2% diverting agent was added, the viscosity was 54×3 mPa·s, and the viscosity of the prepared 1% solution was 33×3 mPa·s, and it could pick and hang;

[0051] 2.5% diverting agent was added, the viscosity was 53.5×3 mPa·s, and the viscosity of the prepared 1% solution was 35×3 mPa·s, and it could pick and hang;

[0052] 3% diverting agent was added, the viscosity was 71×3 mPa·s, and the viscosity of the prepared 1% solution was 34×3 mPa·s.

[0053] The utility model can continuously produce the AM-AM binary polymer copolymer for fracturing, the product quality meets the relevant requirements, and the production efficiency of a single photoreactor can reach 4 tons per day. The single power of a high-pressure mercury lamp is generally 300-500 W, the power of the whole lamp group exceeds 2 KW, while the power of the LED lamp group is only less than 200 W, which has the advantage of operation cost, and the heat generated by the LED lamp is small, while the heat generated by the high-pressure mercury lamp is large. The heat dissipation of the reactor of the invention is much smaller than that of the traditional photoreactor; compared with the water-cooling system, the air-cooling system has a simple structure, low operation and maintenance cost, and small floor area.

[0054] The above are only the preferred embodiments of the utility model, and are not used to limit the utility model. For those skilled in the art, the utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cage-type photoreactor for emulsion polymerization, characterized in that: The invention comprises a barrel-shaped shell box (2) and a cage-shaped reactor (1) arranged in the barrel-shaped shell box (2); a discharge port (14) of the cage-shaped reactor (1) extends out of the top of the barrel-shaped shell box (2), and a feed port (15) of the cage-shaped reactor (1) extends out of the bottom of the barrel-shaped shell box (2); a plurality of high-reflection mirror surfaces (25) are arranged on the circumferential inner wall surface of the barrel-shaped shell box (2), and an LED lamp bead group is arranged on the high-reflection mirror surface (25); a shell box door (22) is arranged on the circumferential wall surface of the barrel-shaped shell box (2); and a blower interface and an air outlet are arranged on the barrel-shaped shell box (2).

2. The cage-type photoreactor for emulsion polymerization according to claim 1, characterized in that: The cage-shaped reactor (1) comprises an upper claw-shaped glass multi-way (11) and a lower claw-shaped glass multi-way (16); a glass straight tube (12) is connected between the upper claw-shaped glass multi-way (11) and the lower claw-shaped glass multi-way (16) via a flange; a discharge port (14) is provided on the upper claw-shaped glass multi-way (11), and a feed port (15) is provided on the lower claw-shaped glass multi-way (16).

3. The cage photoreactor for emulsion polymerization according to claim 2, characterized in that: The flange is a molded fiberglass flange, a bonding flange, a slip-on flange or a special ball-end flange.

4. The cage-type photoreactor for emulsion polymerization according to claim 2, characterized in that: The glass straight tube (12), the upper claw-shaped glass multi-pass (11) and the lower claw-shaped glass multi-pass (16) are all made of quartz glass.

5. The cage photoreactor for emulsion polymerization according to claim 2, characterized in that: The feed port (15) is connected to a plunger pump.

6. The cage photoreactor for emulsion polymerization according to claim 1, characterized in that: The shell box door (22) is a double door structure.

7. The cage photoreactor for emulsion polymerization according to claim 1, characterized in that: The bottom of the barrel-shaped shell box (2) is provided with a plurality of supporting legs (24).

8. The cage photoreactor for emulsion polymerization according to claim 7, characterized in that: A wheel hub (28) is provided at the lower part of the support leg (24).

9. The cage photoreactor for emulsion polymerization according to claim 1, characterized in that: The LED lamp bead group is connected to a numerical control system.

10. The cage photoreactor for emulsion polymerization according to claim 1, characterized in that: The barrel-shaped shell box (2) is made of metal; the high-reflection mirror surface (25) is a curved glass mirror.

Images