A glycol ether microtubular reactor

Abstract

The utility model relates to dihydric alcohol ether micro -tube type reactor technical field, and disclose a dihydric alcohol ether micro -tube type reactor, including the tubular reactor body, the both sides of tubular reactor body surface all are connected with the connecting port for feeding, the inner chamber of tubular reactor body is provided with the auxiliary block of reinforcement fluid chaos mixing effect, the utility model discloses in the routine use of tubular reactor body, can be under the action of liquid heat exchanger body, pressurizing pump, heat exchange pipe and liquid delivery pipe, the heat of tubular reactor body inner chamber is heat exchanged, reaches the effect of temperature control to reduce the possibility of by -product production in the reaction due to local overheating, and can be under the action of pressurizing pump, can make the pressure change of pressurizing chamber inner chamber, thereby make the vibration piece pressure vibrate, and then reach the effect of vibration and drop viscous material, reduce the probability of tubular reactor body block, improve the practicality of this device.

Description

Technical Field

[0001] This utility model relates to the technical field of diol ether microtube reactors, specifically a diol ether microtube reactor. Background Technology

[0002] A diol ether microtubule reactor is a microchemical device specifically designed for the synthesis of diol ethers (such as ethylene glycol ether and propylene glycol ether). Its core functionality lies in achieving highly efficient heat and mass transfer and reaction control through a micrometer-scale channel structure. These reactors typically consist of multiple microchannels within which reactants flow continuously. The high specific surface area of ​​the microchannels (up to 100-200 times that of conventional equipment) accelerates mixing and reaction, while a precise temperature control system suppresses side reactions.

[0003] Currently, some microtubular reactors for diol ethers add disturbance blocks inside the pipes to enhance the chaotic mixing effect of the fluid. However, in the production and processing of diol ethers, if the raw materials contain trace amounts of solid impurities (such as catalyst particles, residual salts from raw material purification), or if byproducts (such as polyether viscous substances, coke) are generated due to local overheating during the reaction, these viscous substances will form a low-pressure vortex zone behind the disturbance block due to the obstruction of the disturbance block. The viscous substances are very easy to adhere to the rear side of the disturbance block and gradually accumulate, causing channel blockage and affecting the normal use of the reactor. Utility Model Content

[0004] The purpose of this invention is to provide a diol ether microtube reactor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a diol ether microtubular reactor, comprising a tubular reactor body, wherein both sides of the surface of the tubular reactor body are connected to a connection port for feeding, and the inner cavity of the tubular reactor body is provided with an auxiliary block to enhance the chaotic mixing effect of the fluid, and further comprising:

[0006] Vibrating plates are installed on the surface of the auxiliary block to clean dirt using vibration. The inner cavity of the tubular reactor body is fixed with several pressurization chambers. Both sides of the surface of the pressurization chamber are connected to connecting pipes. One end of the connecting pipe is connected to a heat exchange pipe, and the other end of the heat exchange pipe is connected to a liquid delivery pipe. The other end of the liquid delivery pipe is connected to a pressurization pump, and one end of the pressurization pump is connected to the liquid heat exchanger body.

[0007] Preferably, the heat exchange tube is spirally arranged through the inner cavity of the tubular reactor body, and the inner surface of the heat exchange tube is attached to the inner wall of the tubular reactor body.

[0008] Preferably, the vibrating plate is positioned on the rear side of the auxiliary block in the direction of action.

[0009] Preferably, the vibrating plate is made of thermoplastic elastomer and has added toughening agents.

[0010] Preferably, the number of heat exchange tubes is several, and they are arranged at equal intervals between the two pressure chambers.

[0011] Preferably, the heat exchange tube is made of 316L stainless steel.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In the daily use of the tubular reactor body, this utility model can exchange heat in the inner cavity of the tubular reactor body under the action of the liquid heat exchanger body, the pressurizing pump, the heat exchange tube, and the liquid delivery pipe, thereby achieving the effect of temperature control. This reduces the possibility of by-products generated due to local overheating during the reaction. Furthermore, under the action of the pressurizing pump, the pressure in the pressurizing chamber can change, causing the vibrating plate to vibrate under pressure, thereby achieving the effect of shaking off viscous substances, reducing the probability of blockage in the tubular reactor body, and improving the practicality of this device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the tubular reactor body after being cut open according to this utility model;

[0016] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0017] Figure 4 This is a partial three-dimensional structural diagram of the present invention.

[0018] In the diagram: 1. Tubular reactor body; 2. Connection port; 3. Auxiliary block; 4. Vibrating plate; 5. Pressurization chamber; 6. Connecting pipe; 7. Heat exchanger tube; 8. Liquid delivery pipe; 9. Pressurization pump; 10. Liquid heat exchanger body. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4As shown, a diol ether microtubular reactor includes a tubular reactor body 1. Both sides of the surface of the tubular reactor body 1 are connected to a feed port 2. The inner cavity of the tubular reactor body 1 is provided with an auxiliary block 3 to enhance the chaotic mixing effect of the fluid. The surface of the auxiliary block 3 is provided with a vibrating plate 4 for cleaning dirt by vibration. The vibrating plate 4 is located on the rear side of the auxiliary block 3 in the direction of action. Since the auxiliary block 3 can enhance the chaotic mixing effect of the fluid during the synthesis of diol ether, a low-pressure vortex zone is formed behind the auxiliary block 3. The viscous substance formed by the synthesis of diol ether will accumulate more on the rear side of the auxiliary block 3. Therefore, by setting the position of the vibrating plate 4, the vibration effect of the vibrating plate 4 on the viscous substance is improved. The vibrating plate 4 is made of thermoplastic elastomer and has added toughening agent. Its molecular chain is composed of rigid segments and flexible segments. It can undergo 100%-500% elastic deformation at room temperature. The introduction of toughening agent, such as maleic anhydride grafted POE, improves elasticity while maintaining mechanical strength.

[0021] The tubular reactor body 1 has several pressurized chambers 5 fixed inside its cavity. Connecting pipes 6 are connected to both sides of the surface of each pressurized chamber 5. One end of each connecting pipe 6 is connected to a heat exchange tube 7. The heat exchange tube 7 is spirally arranged through the inner cavity of the tubular reactor body 1, and its inner surface is in contact with the inner wall of the tubular reactor body 1, increasing the contact area between the heat exchange tube 7 and the tubular reactor body 1, thereby improving the heat exchange effect of the heat exchange tube 7 within the tubular reactor body 1. Several heat exchange tubes 7 are arranged equidistantly between the two pressurized chambers 5, improving the overall heat exchange effect of the heat exchange tubes 7 on the tubular reactor body 1 and enhancing the practicality of the device. The heat exchange tube 7 is made of 316L stainless steel. In this embodiment, this arrangement provides excellent chemical corrosion resistance, making it suitable for corrosion resistance to ethylene oxide, alcohols, and other diol ether raw materials, and also exhibits good thermal conductivity.

[0022] The other end of the heat exchange tube 7 is connected to the liquid delivery pipe 8, and the other end of the liquid delivery pipe 8 is connected to the pressurizing pump 9. One end of the pressurizing pump 9 is connected to the liquid heat exchanger body 10. The pressurizing pump 9 can pressurize the liquid in the liquid heat exchanger body 10 and then flow it to the liquid delivery pipe 8, the heat exchange tube 7, the connecting pipe 6 and the vibrating plate 4.

[0023] The auxiliary block 3 is made of metal. During the production of the auxiliary block 3 and the vibrating plate 4, it can be combined with the outer metal layer through molding sintering or extrusion sintering processes.

[0024] Working principle: When this device is in use, it can be connected to the feed end through the connection port 2. The reactants flow continuously in the pipeline. The mixing and reaction are accelerated by the microchannel and the auxiliary block 3. The working principle of the tubular reactor body 1, the connection port 2 and the auxiliary block 3 is existing technology and will not be described in detail here.

[0025] In daily use of the tubular reactor body 1, the operator can use the pressure pump 9 to send low-temperature liquid into the heat exchange tube 7 through the liquid delivery pipe 8. With the connection of several connecting pipes 6, the heat exchange of the inner cavity of the tubular reactor body 1 is achieved, thereby reducing the instability of the inner cavity of the tubular reactor body 1 and avoiding overheating in the reaction to generate more viscous substances.

[0026] During the process of the auxiliary block 3 disturbing the raw materials, the viscous substance formed by the synthesis of diol ether will accumulate more on the back side of the auxiliary block 3. At this time, the staff can use the pressure pump 9 to increase the flow and pressure of the liquid in the heat exchange tube 7 and the liquid delivery tube 8 under the action of the pressure pump 9.

[0027] When the pressure inside the pressurization chamber 5 is higher than the working pressure inside the tubular reactor body 1, the vibrating plate 4 can deform. Then, the pressure is restored by the pressurization pump 9. The vibrating plate 4 will contract under the action of elastic restoring force, forming a reciprocating vibration of "expansion-contraction". This vibration can not only improve the mass transfer efficiency by disturbing the flow pattern of the fluid in the tube, but also reduce the adhesion of materials on the inner wall of the channel, thereby reducing the risk of blockage.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dihydric alcohol ether micro-tubular reactor comprising a tubular reactor body (1) characterised in that: The tubular reactor body (1) has connection ports (2) for feeding on both sides of its surface. The inner cavity of the tubular reactor body (1) is provided with an auxiliary block (3) to enhance the chaotic mixing effect of the fluid. It also includes: A vibrating plate (4) is installed on the surface of the auxiliary block (3) to clean dirt by vibration. The inner cavity of the tubular reactor body (1) is fixed with several pressurizing chambers (5). Both sides of the surface of the pressurizing chamber (5) are connected to connecting pipes (6). One end of the connecting pipe (6) is connected to a heat exchange pipe (7). The other end of the heat exchange pipe (7) is connected to a liquid delivery pipe (8). The other end of the liquid delivery pipe (8) is connected to a pressurizing pump (9). One end of the pressurizing pump (9) is connected to the liquid heat exchanger body (10).

2. A glycol ether microchannel reactor according to claim 1, wherein: The heat exchange tube (7) is spirally arranged through the inner cavity of the tubular reactor body (1), and the inner surface of the heat exchange tube (7) is attached to the inner wall of the tubular reactor body (1).

3. The diol ether microtubular reactor according to claim 1, characterized in that: The vibrating plate (4) is located on the rear side of the auxiliary block (3) in the direction of action.

4. The diol ether microtubular reactor according to claim 1, characterized in that: The vibrating plate (4) is made of thermoplastic elastomer and has added toughening agent.

5. A diol ether microtubular reactor according to claim 1, characterized in that: The number of heat exchange tubes (7) is several, and they are arranged at equal intervals between the two pressure chambers (5).

6. A diol ether microtubular reactor according to claim 1, characterized in that: The heat exchange tube (7) is made of 316L stainless steel.

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