Fluidized photoreactor and circulating system
By designing a fluidized photoreactor and circulation system in a photocatalytic reactor and circulating system, and fixing solid particles in the light-receiving area of the photoreactor using adjustment units and porous plates, the problems of low reaction efficiency and difficulty in loading and unloading in the prior art are solved. , achieving more efficient photoreaction and concise operation.
Patent Information
- Application Number
- CN202420790408.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The existing photocatalytic reactors are difficult to carry out circulating reactions in liquid-solid-phase and gas-solid-phase reaction systems, and solid particles in the tubular photo reactor are difficult to fix in the light-receiving area, resulting in low reaction efficiency and difficulty in loading and unloading.
A fluidized photoreactor is designed, including glass tubes, light emitting units, adjustment units and porous plates. The solid particles are fixed to the light receiving area of the photoreactor by adjusting the position of the porous plates, and combined with a circulation system to achieve solid particles. Quick loading and unloading and uniform reaction.
The reaction efficiency and processing volume of solid particles are improved, the loading and unloading process is simplified, the uniformity of the reaction and the depth of light penetration are ensured, and the effect of light reaction is enhanced.
Smart Images
Figure CN222131878U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photochemical equipment, in particular to a fluidized photoreactor and a circulation system. Background Art
[0002] Photocatalytic reactor is the carrier of practical application of photocatalytic technology. According to the shape of the reactor, photocatalytic reactor can be divided into kettle reactor, ring reactor and tubular reactor.
[0003] Kettle photoreactors and annular photoreactors generally use top illumination or built-in light sources, the material receiving light area is small, the light source penetration depth and photochemical reaction efficiency are not ideal, and the operation is relatively cumbersome. For example, an existing annular multiphase fluidized bed photocatalytic reactor has a medium-pressure mercury lamp placed in the center of the reactor, and a metal guide plate is set in the middle of the photocatalytic reaction zone. Through the external circulation of the material, the solid particles form an upflow zone and a downflow zone in the reaction zone, so that the solid catalyst is suspended in the material. Although the reaction device increases the light receiving area of the solid catalyst in the liquid-solid system, the built-in light source has the problem of insufficient light source penetration depth, and the difficulty of draining and catalyst separation is increased in the liquid-solid phase system.
[0004] Tubular photoreactors usually use flexible LED light strips as light sources, which are wrapped around the surface of the photoreactor, which can effectively improve the penetration depth of the light source and further improve the efficiency of the photochemical reaction. In addition, the reaction solution flows around it, which can receive the irradiation of ultraviolet light to the greatest extent, thus improving the utilization rate of light energy.
[0005] The applicant has discovered that there are at least the following technical problems in the prior art: 1. When there are larger particles in the liquid-solid phase or gas-solid phase reaction system, the cyclic reaction is difficult to carry out; 2. In the existing tubular photoreactor, it is difficult to fix the solid particles in the light-receiving area of the photoreactor, resulting in the inability of the solid particles to fully participate, and its connection structure is relatively fixed, resulting in difficulty in loading and unloading of the solid particles. Utility Model Content
[0006] The purpose of the utility model is to provide a fluidized photoreactor and a circulation system to solve the technical problems that when there are large particles in the liquid-solid phase and gas-solid phase reaction system in the prior art, the cyclic reaction is difficult to carry out, and the solid particles in the tubular photoreactor are difficult to be fixed in the light receiving area of the photoreactor, resulting in the inability of the solid particles to fully participate, and the connection structure is relatively fixed, resulting in the difficulty of loading and unloading the solid particles. The many technical effects that can be produced by the preferred technical solution among the many technical solutions provided by the utility model are described in detail below.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] A fluidized photoreactor comprises a glass tube, a light emitting unit, a first regulating unit, a first porous plate, a second regulating unit and a second porous plate, wherein the light emitting unit is arranged on the outside of the glass tube, the glass tube is provided with a photoreactor feed port and a photoreactor discharge port, the two ends of the glass tube are respectively connected to the first regulating unit and the second regulating unit, the first regulating unit is connected to the first porous plate and can adjust the relative position of the first porous plate inside the glass tube, and the second regulating unit is connected to the second porous plate and can adjust the relative position of the second porous plate inside the glass tube.
[0009] Preferably, the glass tube includes a tube body and a tube upper body, the tube body is detachably connected to the tube upper body, the light-emitting unit is arranged on the outside of the tube body, one end of the tube body away from the tube upper body is detachably connected to the second adjustment unit and is provided with the photoreactor feed port, one end of the tube upper body away from the tube body is detachably connected to the first adjustment unit and the middle of the tube upper body is provided with the photoreactor discharge port.
[0010] Preferably, the first adjustment unit includes a first adjustment rod, a first adjustment block, a second adjustment block and a third adjustment block, the third adjustment block is detachably connected to the end of the tube upper body, the second adjustment block is detachably connected to the third adjustment block, the first adjustment block is detachably connected to the second adjustment block and can lock one end of the first adjustment rod, and the other end of the first adjustment rod is detachably connected to the first porous plate.
[0011] Preferably, the second adjustment unit comprises a second adjustment rod and a sealing member, the sealing member is detachably connected to the end of the tube body, and both ends of the second adjustment rod are detachably connected to the sealing member and the second porous plate, respectively.
[0012] Preferably, the pipe main body is connected to the pipe upper body through a flange structure.
[0013] Preferably, the third adjusting block is connected to the pipe upper body via a flange structure and is sealed via a sealing structure.
[0014] Preferably, the sealing member is connected to the pipe body via a flange structure.
[0015] Preferably, the light emitting unit is an LED light strip, and the LED light strip is wound around the outside of the glass tube.
[0016] A circulation system comprises a solution kettle, a circulation pump, a flow meter, a control unit and the above-mentioned fluidized photoreactor, wherein the solution kettle is respectively connected with the photoreactor feed port and the photoreactor discharge port on the fluidized photoreactor through a circulation pipeline, a temperature sensor is arranged on the solution kettle, the circulation pump and the flow meter are arranged on the circulation pipeline, and the control unit is respectively communicated with the temperature sensor, the circulation pump, the flow meter and the light-emitting unit.
[0017] Preferably, it also includes a temperature control unit, which includes a temperature control jacket and a high and low temperature integrated machine. The temperature control jacket is arranged on the glass tube or the solution kettle, and the temperature control jacket is connected to the high and low temperature integrated machine.
[0018] The beneficial effects of the utility model are as follows: by releasing the connection between the first adjustment unit and the glass tube, the first porous plate can be taken out of the glass tube, thereby realizing rapid filling of solid particles;
[0019] The first adjustment unit can adjust the relative position of the first porous plate inside the glass tube, and the second adjustment unit can adjust the relative position of the second porous plate inside the glass tube, so as to adjust the fluidization range of the solid particles inside the glass tube;
[0020] When unloading is required, the relative position of the first porous plate can be adjusted to above the discharge port of the photoreactor, and the circulating material can leave the glass tube from the discharge port of the photoreactor to achieve rapid unloading;
[0021] The first porous plate and the second porous plate can fix the solid particles inside the light receiving area of the photoreactor, and control the fluidization range so that it is always in the illumination position without affecting the penetration depth of the light, thereby ensuring the uniformity of the reaction of the loaded particles, which is more conducive to the occurrence of photoreaction. At the same time, in conjunction with the light-emitting unit, the processing capacity and reaction efficiency of the filled solid particles are greatly improved, and the position of the first porous plate can be adjusted to achieve rapid loading and unloading of the solid particles, and the operation is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1 It is a structural diagram of the utility model;
[0024] Figure 2It is a detailed structural diagram of the top of the utility model;
[0025] Figure 3 It is a detailed structural diagram of the bottom of the utility model;
[0026] Figure 4 It is a detailed structural diagram of the connection between the second regulating unit and the second porous plate of the utility model;
[0027] Figure 5 It is a detailed structural diagram of the connection between the first regulating unit and the first porous plate of the utility model;
[0028] Figure 6 It is a detailed structural diagram of the first adjustment unit of the utility model;
[0029] Figure 7 It is a structural diagram of the circulation system of the utility model;
[0030] In the figure, 11, glass tube; 111, tube body; 112, tube upper body; 113, photoreactor inlet; 114, photoreactor outlet; 12, light emitting unit; 13, first adjustment unit; 131, first adjustment rod; 132, first adjustment block; 133, second adjustment block; 134, third adjustment block; 14, first porous plate; 15, second adjustment unit; 151, second adjustment rod; 152, sealing member; 16, second porous plate;
[0031] 2. Solution kettle; 3. Circulation pump; 4. Flow meter; 5. Control unit; 6. High and low temperature integrated machine; 7. Temperature sensor. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.
[0033] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or location relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0035] Embodiment 1
[0036] Reference Figures 1 to 6 The utility model provides a fluidized photoreactor, including a glass tube 11, a light emitting unit 12, a first adjusting unit 13, a first porous plate 14, a second adjusting unit 15 and a second porous plate 16. The light emitting unit 12 is arranged on the outside of the glass tube 11. The glass tube 11 is provided with a photoreactor feed port 113 and a photoreactor discharge port 114. Both ends of the glass tube 11 are respectively connected to the first adjusting unit 13 and the second adjusting unit 15. The first adjusting unit 13 is connected to the first porous plate 14 and can adjust the relative position of the first porous plate 14 inside the glass tube 11. The second adjusting unit 15 is connected to the second porous plate 16 and can adjust the relative position of the second porous plate 16 inside the glass tube 11.
[0037] In this embodiment, the glass tube 11 is preferably a high borosilicate glass tube, which can be suitable for various specifications such as DN40 and DN50.
[0038] In this embodiment, the first porous plate 14 and the second porous plate 16 are preferably made of a variety of materials such as fluoroplastics and stainless steel. The first porous plate 14 and the second porous plate 16 are both provided with evenly distributed small holes, and the aperture of the small holes is preferably at the millimeter level. In this way, the small holes can block millimeter-level solid particles, thereby achieving the purpose of fixing the millimeter-level solid particles in the light-receiving area of the photoreactor, and can be further used for photocatalytic synthesis and catalyst loading, etc.
[0039] In this embodiment, by releasing the connection between the first adjusting rod 131, the first adjusting block 132, the second adjusting block 133 and the glass tube 11, the first porous plate 14 can be taken out of the glass tube 11, and solid particles can be loaded into the glass tube 11 at this time, so as to realize rapid loading of solid particles.
[0040] In addition, the first adjustment unit 13 can adjust the relative position of the first porous plate 14 inside the glass tube 11, and the second adjustment unit 15 can adjust the relative position of the second porous plate 16 inside the glass tube 11, so as to adjust the fluidization range of the solid particles inside the glass tube 11;
[0041] When unloading is required, the relative position of the first porous plate 14 can be adjusted to above the photoreactor discharge port 114. At this time, the material can leave the glass tube 11 from the photoreactor discharge port 114 to achieve rapid unloading.
[0042] After the photoreactor feed port 113 and the photoreactor discharge port 114 are respectively connected to an external circulation system, the solid particles filled in the photoreactor can be fluidized.
[0043] The first porous plate 14 and the second porous plate 16 can fix the solid particles inside the light receiving area of the photoreactor, and control the fluidization range so that it is always in the illumination position without affecting the penetration depth of the light, thereby ensuring the uniformity of the reaction of the loaded particles, which is more conducive to the occurrence of photoreaction. At the same time, in conjunction with the light-emitting unit 12, the processing capacity and reaction efficiency of the filled solid particles are greatly improved, and the position of the first porous plate 14 can be adjusted to achieve rapid loading and unloading of solid particles, and the operation is simple and efficient.
[0044] As an optional embodiment, the glass tube 11 includes a tube body 111 and a tube upper body 112, the tube body 111 and the tube upper body 112 are detachably connected, the light-emitting unit 12 is arranged on the outside of the tube body 111, the end of the tube body 111 away from the tube upper body 112 is detachably connected to the second adjustment unit 15 and is provided with a photoreactor feed port 113, the end of the tube upper body 112 away from the tube body 111 is detachably connected to the first adjustment unit 13 and a photoreactor discharge port 114 is provided in the middle of the tube upper body 112.
[0045] As an optional embodiment, the first adjustment unit 13 includes a first adjustment rod 131, a first adjustment block 132, a second adjustment block 133 and a third adjustment block 134. The third adjustment block 134 is detachably connected to the end of the tube upper body 112, and the connection here is preferably the following flange connection. The second adjustment block 133 is detachably connected to the third adjustment block 134, and the connection here is preferably a threaded connection. The first adjustment block 132 is detachably connected to the second adjustment block 133, and the connection here is preferably a threaded connection. When the two are tightly connected, the first adjustment block 132 can It is able to lock one end of the first adjusting rod 131. When the two are released from the tight connection, the first adjusting rod 131 can adjust the relative position, thereby adjusting the relative position of the first porous plate 14 in the photoreactor. When the first adjusting block 132, the second adjusting block 133 and the third adjusting block 134 are released from the tight connection, the first adjusting rod 131 and the first porous plate 14 are taken out as a whole, so as to realize the rapid filling of solid particles on the top of the photoreactor. The other end of the first adjusting rod 131 is detachably connected to the first porous plate 14, and the connection here is preferably a threaded connection.
[0046] As an optional embodiment, the second adjustment unit 15 includes a second adjustment rod 151 and a seal 152. The seal 152 is detachably connected to the end of the tube body 111, and the connection here is preferably the flange connection described below. The two ends of the second adjustment rod 151 are respectively detachably connected to the seal 152 and the second porous plate 16, and the connection here is preferably a threaded connection, so that the second porous plate 16 can achieve adjustment of the relative position inside the glass tube 11.
[0047] As an optional implementation, the pipe main body 111 is connected to the pipe upper body 112 via a flange structure. The flange connection has good connection strength and is easier to assemble and disassemble.
[0048] As an optional implementation, the third adjustment block 134 is connected to the tube upper body 112 through a flange structure and is sealed through a sealing structure. The flange connection has good connection strength and is easier to disassemble and assemble. The sealing structure can ensure a tight seal during connection.
[0049] As an optional implementation, the sealing member 152 is connected to the pipe body 111 via a flange structure. The flange connection has good connection strength and is easier to assemble and disassemble.
[0050] As an optional implementation, the light-emitting unit 12 is an LED light strip, which is wound around the outside of the glass tube 11. The LED light strip has a high-quality light-emitting effect, can contain a variety of wavelengths and powers, and the operating power is adjustable.
[0051] Embodiment 2
[0052] Reference Figure 7 The utility model also provides a circulation system, including a solution kettle 2, a circulation pump 3, a flow meter 4, a control unit 5 and the above-mentioned fluidized photoreactor, the solution kettle 2 is respectively connected with the photoreactor feed port 113 and the photoreactor discharge port 114 on the fluidized photoreactor through a circulation pipeline, a temperature sensor 7 is arranged on the solution kettle 2, the circulation pump 3 and the flow meter 4 are arranged on the circulation pipeline, and the control unit 5 is respectively connected to the temperature sensor 7, the circulation pump 3, the flow meter 4 and the light emitting unit 12 on the fluidized photoreactor for communication;
[0053] By arranging a circulation pump 3 and a flow meter 4 on the circulation pipeline, the flow rate of the material can be controlled to ensure the fluidization of the solid particles. At the same time, the first porous plate 14 and the second porous plate 16 are used to fix the solid particles in the light receiving area of the photoreactor, fully contact with the solution, and the mixed solid particles are suspended in the material. Without affecting the penetration depth of light, it has a larger specific surface area than the catalyst in the homogeneous system, so it is more conducive to the occurrence of light reaction. In conjunction with the multi-wavelength high-power flexible LED light strip, the processing capacity and reaction efficiency of the filled solid particles are greatly improved, and the relative positions of the first porous plate 14 and the second porous plate 16 can be adjusted in conjunction with the control unit 5 to achieve rapid loading and unloading of solid particles in the system, and the operation is simple and efficient.
[0054] The circulation system enlarges the reaction system, greatly increases the processing efficiency of single-filled particles, and the photoreactor can also achieve series-parallel amplification;
[0055] The control unit 5 can control the given frequency of the circulation pump 3, the running time at different frequencies and the power of the light source, and monitor the material flow and the temperature in the solution kettle 2 in real time. When the temperature exceeds the limit, the system can alarm and turn off the light source. It can also control the given starting frequency of the circulation pump 3, the setting and control of the running time in the starting stage, the setting of multiple frequencies in different running stages and the control of the running time.
[0056] The specific structure and corresponding control principle of the control unit 5 are relatively conventional prior art, and thus will not be further described.
[0057] As an optional implementation, it also includes a temperature control unit, which can control the temperature of the circulation system. In this embodiment, the temperature control unit specifically includes a temperature control jacket and a high and low temperature integrated machine 6. The temperature control jacket can be arbitrarily set on the glass tube 11 or the solution kettle 2. The two different settings have good temperature control effects. The temperature control jacket is connected to the high and low temperature integrated machine 6.
[0058] Embodiment 3
[0059] The utility model is not limited to use in liquid-solid phase reaction systems, but can also be used in gas-liquid-solid three-phase reaction systems. When the liquid phase external circulation is turned on, gas is introduced, and the gas-liquid two-phase circulation is used to realize the fluidization of the particles filled in the photoreactor; when the liquid phase external circulation is closed, gas disturbance is used to realize the fluidization of the particles filled in the photoreactor; the reactor is never limited to realizing the fluidization of the particles by controlling the external circulation flux of the material, which enriches the working mode of the circulation system.
[0060] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A fluidized photoreactor, characterized in that: The invention comprises a glass tube (11), a light-emitting unit (12), a first adjustment unit (13), a first porous plate (14), a second adjustment unit (15) and a second porous plate (16); the light-emitting unit (12) is arranged on the outside of the glass tube (11); a photoreactor feed port (113) and a photoreactor discharge port (114) are arranged on the glass tube (11); two ends of the glass tube (11) are respectively connected to the first adjustment unit (13) and the second adjustment unit (15); the first adjustment unit (13) is connected to the first porous plate (14) and is capable of adjusting the relative position of the first porous plate (14) inside the glass tube (11); and the second adjustment unit (15) is connected to the second porous plate (16) and is capable of adjusting the relative position of the second porous plate (16) inside the glass tube (11).
2. The fluidized photoreactor according to claim 1, characterized in that: The glass tube (11) comprises a tube body (111) and a tube upper body (112); the tube body (111) is detachably connected to the tube upper body (112); the light-emitting unit (12) is arranged on the outside of the tube body (111); one end of the tube body (111) away from the tube upper body (112) is detachably connected to the second adjustment unit (15) and is provided with the photoreactor feed port (113); one end of the tube upper body (112) away from the tube body (111) is detachably connected to the first adjustment unit (13) and the photoreactor discharge port (114) is provided in the middle of the tube upper body (112).
3. The fluidized photoreactor according to claim 2, characterized in that: The first adjustment unit (13) comprises a first adjustment rod (131), a first adjustment block (132), a second adjustment block (133) and a third adjustment block (134); the third adjustment block (134) is detachably connected to the end of the tube upper body (112); the second adjustment block (133) is detachably connected to the third adjustment block (134); the first adjustment block (132) is detachably connected to the second adjustment block (133) and is capable of locking one end of the first adjustment rod (131); and the other end of the first adjustment rod (131) is detachably connected to the first porous plate (14).
4. The fluidized photoreactor according to claim 2, characterized in that: The second adjustment unit (15) comprises a second adjustment rod (151) and a sealing member (152), wherein the sealing member (152) is detachably connected to the end of the tube body (111), and the two ends of the second adjustment rod (151) are detachably connected to the sealing member (152) and the second porous plate (16), respectively.
5. The fluidized photoreactor according to claim 2, characterized in that: The pipe main body (111) is connected to the pipe upper body (112) via a flange structure.
6. The fluidized photoreactor according to claim 3, characterized in that: The third adjustment block (134) is connected to the pipe upper body (112) via a flange structure and is sealed via a sealing structure.
7. The fluidized photoreactor according to claim 4, characterized in that: The sealing member (152) is connected to the pipe body (111) via a flange structure.
8. The fluidized photoreactor according to claim 1, characterized in that: The light-emitting unit (12) is an LED light strip, and the LED light strip is wound around the outside of the glass tube (11).
9. A circulation system, characterized in that: The invention comprises a solution kettle (2), a circulation pump (3), a flow meter (4), a control unit (5) and a fluidized photoreactor according to any one of claims 1 to 8, wherein the solution kettle (2) is respectively connected to the photoreactor feed port (113) and the photoreactor discharge port (114) on the fluidized photoreactor through a circulation pipeline, a temperature sensor (7) is arranged on the solution kettle (2), the circulation pump (3) and the flow meter (4) are arranged on the circulation pipeline, and the control unit (5) is respectively connected to the temperature sensor (7), the circulation pump (3), the flow meter (4) and the light emitting unit (12) in communication.
10. The circulation system according to claim 9, characterized in that It also comprises a temperature control unit, the temperature control unit comprising a temperature control jacket and a high and low temperature integrated machine (6), the temperature control jacket is arranged on the glass tube (11) or on the solution kettle (2), and the temperature control jacket is connected to the high and low temperature integrated machine (6).