A kind of anti-clogging propylene carbonate synthesis device

Abstract

The utility model belongs to the technical field of propylene carbonate synthesis, and is used to solve the problem in the prior art that it is difficult to use the waste heat in a synthesis device to insulate and preheat a bottle body, thereby accelerating the evaporation of a synthesized liquid, avoiding clogging of the bottle body, and improving the synthesis efficiency. Specifically, it is an anti-clogging propylene carbonate synthesis device, comprising a synthesis tank body. The utility model continuously draws hot air from the inner side of a heat preservation cover into a heat preservation cavity by an air pump, and preheats the bottle body in advance, thereby accelerating the evaporation of the synthesized liquid. When the reaction of the liquid in the synthesis tank body is completed, the liquid is transported into the bottle body through a connecting pipe, and an alcohol lamp is turned on to evaporate the liquid in the bottle body. Then, the air pump is stopped, the air pressure in the heat preservation cavity is reduced, a thrust spring resets a push plate, and then the air outlet is blocked, the gas in the heat preservation cavity is avoided to escape, the bottle body is kept warm, the evaporation efficiency is accelerated, the bottle body is avoided to be blocked, and the synthesis efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of propylene carbonate synthesis, in particular to an anti-blocking propylene carbonate synthesis device. Background Art

[0002] In the electronics industry, the release of high-energy batteries or capacitors requires excellent media, of which propylene carbonate is a good choice. Propylene carbonate can also be used as a solvent and plasticizer for polymers. Since it needs to be used in large quantities, factories need to have the industrial technology to independently prepare propylene carbonate. However, the existing synthesis preparation equipment has the problem of poor airtightness, which leads to insufficient gas pressure leakage during the synthesis reaction, inadequate reaction, and reduced reaction efficiency.

[0003] According to the patent document with patent number CN211246543U, the device is provided with a rotating structure to make the airtight effect of the synthesis device more obvious, thereby improving the effect and rate of the reaction and increasing the practicality of the synthesis device; however, in the above-mentioned device, the liquid after the reaction flows along the tube body and into the bottle body, evaporates under the heating of the alcohol lamp, and then flows into the condenser through the tube body at the right end to liquefy and form propylene carbonate, and a large amount of liquid after the reaction enters the bottle body, which easily causes blockage inside the bottle body, making it difficult to use the waste heat in the synthesis device to insulate and preheat the bottle body, thereby accelerating the evaporation of the liquid after synthesis, avoiding blockage of the bottle body, and improving the synthesis efficiency.

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The utility model aims to provide an anti-clogging propylene carbonate synthesis device, which uses an air pump to continuously draw hot air from the inner side of a heat-insulating cover into a heat-insulating chamber to preheat a bottle body in advance. When the reaction of liquid in the synthesis tank is completed, the air pump is stopped, the air pressure in the heat-insulating chamber is reduced, the air outlet is blocked, and the gas in the heat-insulating chamber is prevented from escaping, the bottle body is kept warm, the evaporation efficiency is accelerated, the bottle body is prevented from being blocked, and the synthesis efficiency is improved. The utility model solves the problem in the prior art that it is difficult to use the waste heat in the synthesis device to keep the bottle body warm and preheat it, thereby accelerating the evaporation of the synthesized liquid, avoiding the blockage of the bottle body, and improving the synthesis efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A propylene carbonate synthesis device with anti-clogging, comprising a synthesis tank body, an air inlet pipe and a liquid inlet pipe are respectively inserted on both sides of the top of the synthesis tank body, a plurality of groups of supporting legs are fixedly installed on the bottom wall of the tank body, an evaporation element is arranged at the output end of the synthesis tank body through a connecting pipe, and a preheating mechanism is arranged on the outer side of the evaporation element;

[0008] The preheating mechanism includes an evaporation box arranged on the outside of the evaporation element, an air pump is arranged on the top of the evaporation box, a delivery pipe 1 is arranged at the input end of the air pump, and a delivery pipe 2 is arranged at the output end of the air pump. A heat preservation cavity is formed between the inner wall of the evaporation box and the outer wall of the evaporation element, and the output end of the delivery pipe 2 extends into the heat preservation cavity. A ventilation component for ventilating the heat preservation cavity is arranged on the bottom side wall of the evaporation box.

[0009] Furthermore, the ventilation component includes a movable tube fixedly connected to the insulation chamber, a push plate is slidably provided on the inner wall of the movable tube close to the insulation chamber, a movable rod is fixedly connected to the side wall of the push plate away from the movable chamber, and a limit plate is slidably provided on the outer wall of the movable rod.

[0010] Furthermore, the circumferential outer wall of the limit plate is fixedly connected to the inner wall of the movable tube, the outer wall of the movable rod located between the limit plate and the push plate is sleeved with a thrust spring, and the outer wall of the movable tube located between the limit plate and the push plate is provided with a plurality of air outlets.

[0011] Furthermore, the evaporation element is composed of a bottle body and an alcohol lamp, and the alcohol lamp is located below the bottle body. The input end of the bottle body is connected to the connecting pipe through connecting pipe 1, and the output end of the bottle body extends to the outside of the evaporation box through connecting pipe 2.

[0012] Furthermore, a heat preservation cover is fixedly sleeved on the outer wall of the synthetic tank body, a plurality of air holes are opened on the top wall of the heat preservation cover, and the plurality of air holes are arranged in a circular array relative to the center line of the heat preservation cover, and the output end of the heat preservation cover is connected to a delivery pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, the hot air inside the heat preservation cover is continuously pumped into the heat preservation chamber by an air pump, and the bottle body is preheated in advance, thereby accelerating the evaporation of the synthetic liquid. When the liquid reaction in the synthesis tank body is completed, the liquid is transported to the bottle body through the connecting pipe 1, and the alcohol lamp is turned on to evaporate the liquid in the bottle body. Then, the air pump is stopped, and the air pressure in the heat preservation chamber is reduced. At this time, the thrust spring resets the push plate, and then the air outlet is blocked to avoid the gas in the heat preservation chamber from escaping, thereby keeping the bottle body warm, accelerating the evaporation efficiency, avoiding the blockage of the bottle body, and improving the synthesis efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the heat preservation cover in the utility model;

[0018] Figure 3 It is a three-dimensional diagram of the preheating mechanism in the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the evaporation hood in the utility model;

[0020] Figure 5 It is a three-dimensional diagram of the ventilation component in the utility model.

[0021] Figure numerals: 1. synthetic tank body; 2. supporting leg; 3. air inlet pipe; 4. liquid inlet pipe; 51. thermal insulation cover; 52. air vent; 61. delivery pipe one; 62. air pump; 63. delivery pipe two; 64. evaporating component; 65. ventilation component; 651. air outlet; 652. movable pipe; 653. push plate; 654. movable rod; 655. thrust spring; 656. limit plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. 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 embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1:

[0024] like Figure 1-5 As shown, the present embodiment proposes an anti-clogging propylene carbonate synthesis device, comprising a synthesis tank body 1, an air inlet pipe 3 and a liquid inlet pipe 4 are respectively inserted on both sides of the top of the synthesis tank body 1, a plurality of groups of support legs 2 are fixedly installed on the bottom wall of the tank body, an evaporation member 64 is provided at the output end of the tank body through a connecting pipe, and a preheating mechanism is provided on the outer side of the evaporation member 64;

[0025] It should be noted that a heating device for heating the inside of the synthesis tank 1 is arranged on the outside of the synthesis tank 1, and a stirring device for reacting the liquid inside the synthesis tank 1 is arranged inside the synthesis tank 1. The synthesis tank 1 is a functional device for reacting to liquid in the prior art, and belongs to the prior art, so it will not be described in detail here, and it is only necessary that it has the above functions for the above liquid;

[0026] The preheating mechanism includes an evaporation box arranged outside the evaporation element 64, an air pump 62 is arranged on the top of the evaporation box, a delivery pipe 1 61 is arranged at the input end of the air pump 62, a delivery pipe 2 63 is arranged at the output end of the air pump 62, a heat preservation cavity is formed between the inner wall of the evaporation box and the outer wall of the evaporation element 64, the output end of the delivery pipe 2 63 extends into the heat preservation cavity, and a ventilation component 65 for ventilating the heat preservation cavity is arranged on the bottom side wall of the evaporation box;

[0027] It should be noted that the heat preservation chamber plays a role in keeping the evaporation element 64 warm, thereby accelerating the evaporation of the evaporation element 64 .

[0028] The ventilation component 65 includes a movable tube 652 fixedly connected to the insulation chamber, a push plate 653 is slidably provided on the inner wall of the movable tube 652 close to the insulation chamber, a movable rod 654 is fixedly connected to the side wall of the push plate 653 away from the movable chamber, and a limit plate 656 is slidably provided on the outer wall of the movable rod 654; it should be noted that the limit plate 656 serves to limit the movable rod 654.

[0029] The circumferential outer wall of the limit plate 656 is fixedly connected to the inner wall of the movable tube 652, and a thrust spring 655 is sleeved on the outer wall of the movable rod 654 located between the limit plate 656 and the push plate 653, and a plurality of air outlet holes 651 are opened on the outer wall of the movable tube 652 located between the limit plate 656 and the push plate 653; it should be noted that when the gas enters the heat preservation chamber, the air pressure squeezes the push plate 653, so that the push plate 653 pushes the movable rod 654 outward, so that the hot air in the heat preservation chamber is discharged through the air outlet holes 651.

[0030] The evaporation element 64 is composed of a bottle body and an alcohol lamp, and the alcohol lamp is located below the bottle body. The input end of the bottle body is connected to the connecting pipe through the connecting pipe 1, and the output end of the bottle body is extended to the outside of the evaporation box through the connecting pipe 2.

[0031] It should be noted that the evaporation element 64 is consistent with the principle of evaporating the synthetic liquid in the patent document with patent number CN211246543U.

[0032] A heat-insulating cover 51 is fixedly mounted on the outer wall of the synthesis tank body 1, and a plurality of air holes 52 are opened on the top wall of the heat-insulating cover 51. The output end of the heat-insulating cover 51 is connected to a conveying pipe 61. It should be noted that the heat-insulating cover 51 can recover the waste heat on the outside of the synthesis tank body 1 during the reaction.

[0033] The working process and principle of the utility model are as follows:

[0034] First, propylene oxide is added into the synthesis tank body 1 through the liquid inlet pipe 4, and then carbon dioxide gas is introduced into the synthesis tank body 1 through the air inlet pipe 3. The propylene oxide and carbon dioxide gas in the synthesis tank body 1 are reacted by the heating device and the stirring device outside the synthesis tank body 1. In this process, the hot air inside the insulation cover 51 is continuously pumped into the insulation chamber by the air pump 62 to preheat the bottle body in advance, thereby accelerating the evaporation of the synthetic liquid. After the reaction of the liquid in the synthesis tank body 1 is completed, the liquid is transported into the bottle body through the connecting pipe 1, and the alcohol lamp is turned on at the same time to evaporate the liquid in the bottle body. At the same time, the air pump 62 is stopped, the air pressure in the insulation chamber is reduced, and the thrust spring 655 resets the push plate 653, thereby completing the blocking of the air outlet 651 to prevent the gas in the insulation chamber from escaping, keep the bottle body warm, accelerate the evaporation efficiency, avoid the blockage of the bottle body, and improve the synthesis efficiency. The evaporated gas is then liquefied through the condenser to form propylene carbonate.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A propylene carbonate synthesis device with anti-clogging, comprising a synthesis tank body (1), an air inlet pipe (3) and a liquid inlet pipe (4) are respectively inserted on both sides of the top of the synthesis tank body (1), a plurality of groups of support legs (2) are fixedly installed on the bottom wall of the tank body, and an evaporation element (64) is arranged at the output end of the synthesis tank body (1) through a connecting pipe, characterized in that: A preheating mechanism is provided on the outer side of the evaporator (64); The preheating mechanism comprises an evaporation box arranged outside the evaporation element (64), an air pump (62) is arranged on the top of the evaporation box, a delivery pipe (61) is arranged at the input end of the air pump (62), a delivery pipe (63) is arranged at the output end of the air pump (62), a heat preservation cavity is formed between the inner wall of the evaporation box and the outer wall of the evaporation element (64), the output end of the delivery pipe (63) extends into the heat preservation cavity, and a ventilation component (65) for ventilating the heat preservation cavity is arranged on the bottom side wall of the evaporation box.

2. The anti-clogging propylene carbonate synthesis device according to claim 1, characterized in that: The ventilation component (65) comprises a movable tube (652) fixedly connected to the heat preservation chamber, a push plate (653) is slidably provided on the inner wall of the movable tube (652) close to the heat preservation chamber, a movable rod (654) is fixedly connected to the side wall of the push plate (653) away from the movable chamber, and a limit plate (656) is slidably provided on the outer wall of the movable rod (654).

3. The anti-clogging propylene carbonate synthesis device according to claim 2, characterized in that: The circumferential outer wall of the limiting plate (656) is fixedly connected to the inner wall of the movable tube (652); a thrust spring (655) is sleeved on the outer wall of the movable rod (654) located between the limiting plate (656) and the pushing plate (653); and a plurality of air outlet holes (651) are opened on the outer wall of the movable tube (652) located between the limiting plate (656) and the pushing plate (653).

4. The anti-clogging propylene carbonate synthesis device according to claim 3, characterized in that: The evaporation element (64) consists of a bottle body and an alcohol lamp, and the alcohol lamp is located below the bottle body. The input end of the bottle body is connected to the connecting pipe through a connecting pipe 1, and the output end of the bottle body extends to the outside of the evaporation box through a connecting pipe 2.

5. The anti-clogging propylene carbonate synthesis device according to claim 4, characterized in that: A heat-insulating cover (51) is fixedly sleeved on the outer wall of the synthetic tank body (1), a plurality of air holes (52) are opened on the top wall of the heat-insulating cover (51), and the plurality of air holes (52) are arranged in a circular array relative to the center line of the heat-insulating cover (51), and the output end of the heat-insulating cover (51) is connected to a conveying pipe (61).

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