Methanol-to-olefin refrigerating device

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses a methanol-to-olefin refrigeration device which comprises a base, a reaction furnace is arranged at one end of the top of the base, a reaction chamber is arranged in the reaction furnace, and a refrigeration mechanism for refrigerating the reaction chamber is arranged at the other end of the top of the base. The refrigeration mechanism comprises a cooling box fixed to one end of the top of the base, a semiconductor refrigeration piece is installed at one end of the inner wall of the cooling box, and heat dissipation fins are arranged at the other end of the semiconductor refrigeration piece. According to the utility model, the stable cooling temperature is ensured, the reaction rate of the reaction chamber is favorably improved, the reaction process is ensured to be carried out under the optimal condition, the system can effectively and quickly take away heat generated in the reaction chamber, the cooling liquid is timely replaced, the unstable temperature caused by heat accumulation is avoided, the cooling liquid is stirred by the stirring plate, and the cooling efficiency is improved. And the contact area between the cooling liquid and the refrigeration sheet is increased, so that the cooling speed of the cooling liquid is increased, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a methanol-to-olefins refrigeration device. Background Art

[0002] Methanol to olefins (MTO) refers to the technology of producing low-carbon hydrocarbons (ethylene, propylene) from methanol. The main reaction principle is that methanol is first dehydrated to produce dimethyl ether, and then the equilibrium mixture of dimethyl ether and raw material methanol is dehydrated and further converted into low-carbon olefins mainly composed of ethylene and propylene.

[0003] In the existing methanol to olefins process, a large amount of heat is generated. If it is not refrigerated in time, the stability and efficiency of the reaction will be reduced. Generally, the heat brought by the reaction chamber is taken away by coolant to achieve the cooling effect. When the coolant accepts a large amount of heat, it cannot be quickly discharged and then replaced, resulting in unstable heat, which in turn affects the efficiency of the reaction. Therefore, a methanol to olefins refrigeration device is urgently needed to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a methanol to olefin refrigeration device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A methanol-to-olefins refrigeration device comprises a base, a reactor is provided at one end of the top of the base, a reaction chamber is provided inside the reactor, and a refrigeration mechanism for cooling the reaction chamber is provided at the other end of the top of the base;

[0007] The refrigeration mechanism includes a cooling box fixed to one end of the top of the base, a semiconductor refrigeration plate is installed at one end of the inner wall of the cooling box, and a heat dissipation fin is provided at the other end of the semiconductor refrigeration plate, and the refrigeration end of the semiconductor refrigeration plate is located inside the cooling box, and a liquid inlet pipe communicating with the interior of the cooling box is provided at one end of the top of the cooling box, and a serpentine delivery pipe is installed on the outer wall of the reactor, and the top end of the serpentine delivery pipe passes through the outer wall of one end of the reactor and is connected to a first connecting pipe, and the bottom of the first connecting pipe is connected to and communicated with the top of the cooling box, and coolant is provided inside the cooling box, and a stirring mechanism for quickly stirring and cooling the coolant is provided inside the cooling box, and the semiconductor refrigeration plate is electrically connected to a controller.

[0008] As a further solution of the present invention, the bottom of one end of the cooling box is connected to a liquid inlet pipe communicating with the interior thereof, the other end of the liquid inlet pipe is installed with the water inlet end of a water pump, and the water outlet end of the water pump is connected to the bottom of the other end of the serpentine delivery pipe through a conduit. The water pump will circulate the coolant inside the cooling box to the serpentine delivery pipe to cool the reactor, thereby improving the refrigeration efficiency.

[0009] As a further solution of the present invention, the stirring mechanism includes a rotating rod rotatably connected to both sides of the inner wall of the cooling box, and a number of stirring plates are fixed to the outer walls of the two rotating rods. The stirring plates will stir the coolant circulating inside the cooling box to cool it quickly.

[0010] As a further solution of the present invention, two synchronous wheels are provided on the outer wall of the other side of the cooling box. The two synchronous wheels correspond to the two rotating rods one by one and are fixedly connected to one side thereof. The outer walls of the two synchronous wheels are provided with adaptive synchronous belts.

[0011] As a further solution of the present invention, a motor is installed on the outer wall of one side of the cooling box, and the output shaft of the motor is rotatably connected to one end of one of the rotating rods.

[0012] As a further solution of the present invention, a cavity is opened inside the reactor, and the reactor is located at the top of the inner wall of the cavity. The serpentine conveying pipe is located in the cavity and fits the outer wall of the reaction chamber. The electrical components inside the reactor and the reaction chamber are all existing technologies and will not be described in detail.

[0013] As a further solution of the present invention, one end of the top of the reactor is connected to a methanol feed pipe communicating with the interior of the reactor, and the other end of the top of the reactor is provided with a catalyst feed pipe.

[0014] The beneficial effects of the utility model are:

[0015] The utility model adopts a semiconductor refrigeration chip, which is adjusted to a suitable temperature by a controller. When the water pump extracts the coolant inside the cooling box and then injects the coolant into the cooling box, the first part of the coolant extracted will be transported to the serpentine delivery pipe, and then discharged into the cooling box from the first connecting pipe. In this process, the coolant inside the cooling box that has been cooled can be extracted and transported to the serpentine delivery pipe by the water pump, and then the motor is started. The motor will drive the rotating rod to rotate, and the rotating rod will drive the stirring plate to stir the coolant with a certain amount of heat inside the cooling box, thereby accelerating the contact area between the coolant and the refrigeration end of the semiconductor refrigeration chip, thereby quickly stirring the coolant. The system can cool down the reaction chamber to ensure stable cooling temperature and improve reaction efficiency, and effectively solve the problem mentioned in the background technology that the coolant cannot be quickly discharged and replaced when receiving a large amount of heat, resulting in unstable heat and affecting the efficiency of the reaction. It ensures a stable cooling temperature, helps to improve the reaction efficiency of the reaction chamber, and ensures that the reaction process is carried out under optimal conditions. The system can effectively and quickly take away the heat generated in the reaction chamber and replace the coolant in time to avoid temperature instability caused by heat accumulation. The coolant is stirred by the stirring plate to increase the contact area between the coolant and the refrigeration plate, thereby accelerating the cooling rate of the coolant and having high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a methanol-to-olefins refrigeration device proposed in the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of a reactor of a methanol-to-olefins refrigeration device proposed in the present invention;

[0018] Figure 3 This is a schematic diagram of the partial structure of the refrigeration mechanism of a methanol to olefins refrigeration device proposed in the utility model.

[0019] In the figure: 1. Base; 2. Reactor; 201. Methanol feed pipe; 202. Catalyst feed pipe; 203. Cavity; 204. Reaction chamber; 3. Cooling box; 301. First connecting pipe; 302. Water pump; 303. Synchronous pulley; 304. Synchronous belt; 305. Serpentine delivery pipe; 306. Liquid inlet pipe; 4. Motor; 401. Rotating rod; 402. Stirring plate; 5. Semiconductor refrigeration plate; 501. Heat sink fin. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] Reference Figure 1 - Figure 3 A methanol-to-olefins refrigeration device includes a base 1, a reactor 2 is provided at one end of the top of the base 1, a reaction chamber 204 is provided inside the reactor 2, and a refrigeration mechanism for cooling the reaction chamber 204 is provided at the other end of the top of the base 1;

[0023] The refrigeration mechanism includes a cooling box 3 fixed to one end of the top of the base 1, a semiconductor refrigeration plate 5 is installed at one end of the inner wall of the cooling box 3, and a heat dissipation fin 501 is provided at the other end of the semiconductor refrigeration plate 5, and the refrigeration end of the semiconductor refrigeration plate 5 is located inside the cooling box 3, and a liquid inlet pipe 306 communicating with the interior of the cooling box 3 is provided at one end of the top of the cooling box 3. A serpentine delivery pipe 305 is installed on the outer wall of the reactor 2, and the top end of the serpentine delivery pipe 305 passes through the outer wall of one end of the reactor 2 and is connected to a first connecting pipe 301, and the bottom of the first connecting pipe 301 is connected to and communicated with the top of the cooling box 3. Cooling liquid is provided inside the cooling box 3, and a stirring mechanism for quickly stirring and cooling the cooling liquid is provided inside the cooling box 3. The semiconductor refrigeration plate 5 is electrically connected to a controller.

[0024] In this embodiment, the bottom of one end of the cooling box 3 is connected to a liquid inlet pipe 306 that communicates with the interior thereof, and the other end of the liquid inlet pipe 306 is installed with the water inlet end of the water pump 302. The water outlet end of the water pump 302 is connected to the bottom of the other end of the serpentine delivery pipe 305 through a conduit. The water pump 302 will circulate the coolant inside the cooling box 3 to the serpentine delivery pipe 305 to cool the reactor 2, thereby improving the cooling efficiency.

[0025] In this embodiment, the stirring mechanism includes a rotating rod 401 rotatably connected to both sides of the inner wall of the cooling box 3. The outer walls of the two rotating rods 401 are fixed with a plurality of stirring plates 402. The stirring plates 402 stir the coolant circulating in the cooling box 3 to cool it quickly.

[0026] In this embodiment, two synchronous wheels 303 are provided on the outer wall of the other side of the cooling box 3. The two synchronous wheels 303 correspond to the two rotating rods 401 one by one and are fixedly connected to one side thereof. The outer walls of the two synchronous wheels 303 are provided with adaptive synchronous belts 304.

[0027] In this embodiment, a motor 4 is installed on an outer wall of one side of the cooling box 3 , and an output shaft of the motor 4 is rotatably connected to one end of one of the rotating rods 401 .

[0028] In this embodiment, a cavity 203 is opened inside the reactor 2, and the reactor 2 is located at the top of the inner wall of the cavity 203. The serpentine delivery pipe 305 is located in the cavity 203 and is attached to the outer wall of the reaction chamber 204. The electrical components inside the reactor 2 and the reaction chamber 204 are all existing technologies and will not be described in detail.

[0029] In this embodiment, one end of the top of the reaction furnace 2 is connected to a methanol feed pipe 201 communicating with the interior thereof, and the other end of the top of the reaction furnace 2 is provided with a catalyst feed pipe 202 .

[0030] Working principle: When in use, the reactor 2 in the present device is the existing technology, and its internal electrical components and working principle are not the innovative part of the present device, so the working principle of the reaction between methanol and the catalyst is not described here. When the reactor 2 needs to be refrigerated to ensure the reaction rate between methanol and the catalyst, first, the coolant is injected into the interior of the cooling box 3 through the liquid inlet pipe 306, and then the semiconductor refrigeration piece 5 is started by an external power supply, and the temperature of the semiconductor refrigeration piece 5 is set to the optimal temperature between the reactions, and then the water pump 302 is started. The water pump 302 will extract the coolant inside the cooling box 3 through the liquid inlet pipe 306, and then deliver it to the serpentine delivery pipe 305. The coolant in the serpentine delivery pipe 305 will cool the outer wall of the reactor 2, and then the interior of the reactor 2 can be cooled. The cooling treatment is carried out, and then the cooling liquid is injected into the interior of the cooling box 3 through the liquid inlet pipe 306 to cool the cooling liquid first. The cooling liquid will circulate through the serpentine delivery pipe 305 and be delivered to the first connecting pipe 301, and then be delivered to the cooling box 3. At this time, the cooling liquid inside the cooling box 3 will continue to circulate in the serpentine delivery pipe 305. Then the motor 4 is started, and the motor 4 will drive the rotating rod 401 to rotate. The rotating rod 401 will drive the corresponding synchronous wheel 303 to rotate. The synchronous wheel 303 will drive another synchronous wheel 303 to rotate through the synchronous belt 304, and then the two rotating rods 401 will rotate at the same time. The rotating rod 401 will drive the stirring plate 402 to stir the circulated cooling liquid, thereby accelerating the cooling speed of the cooling liquid and improving the cooling efficiency of the reaction furnace 2.

[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A methanol to olefins refrigeration device, comprising a base (1), characterized in that: A reaction furnace (2) is provided at one end of the top of the base (1), a reaction chamber (204) is provided inside the reaction furnace (2), and a refrigeration mechanism for cooling the reaction chamber (204) is provided at the other end of the top of the base (1); The refrigeration mechanism includes a cooling box (3) fixed to one end of the top of the base (1), a semiconductor refrigeration plate (5) is installed at one end of the inner wall of the cooling box (3), a heat dissipation fin (501) is provided at the other end of the semiconductor refrigeration plate (5), and the refrigeration end of the semiconductor refrigeration plate (5) is located inside the cooling box (3), a liquid inlet pipe (306) communicating with the interior of the cooling box (3) is provided at one end of the top of the cooling box (3), a serpentine delivery pipe (305) is installed on the outer wall of the reaction furnace (2), the top end of the serpentine delivery pipe (305) passes through the outer wall of one end of the reaction furnace (2) and is connected to a first connecting pipe (301), and the bottom of the first connecting pipe (301) is connected to and communicated with the top of the cooling box (3), the interior of the cooling box (3) is provided with a cooling liquid, and the interior of the cooling box (3) is provided with a stirring mechanism for rapidly stirring and cooling the cooling liquid.

2. The methanol-to-olefins refrigeration device according to claim 1, characterized in that: The bottom of one end of the cooling box (3) is connected to a liquid inlet pipe (306) communicating with the interior thereof, the other end of the liquid inlet pipe (306) is installed with a water inlet end of a water pump (302), and the water outlet end of the water pump (302) is connected to the bottom of the other end of the serpentine delivery pipe (305) through a conduit.

3. The methanol-to-olefins refrigeration device according to claim 1, characterized in that: The stirring mechanism comprises a rotating rod (401) rotatably connected to both sides of the inner wall of the cooling box (3), and a plurality of stirring plates (402) are fixed to the outer walls of the two rotating rods (401).

4. The methanol-to-olefins refrigeration device according to claim 3, characterized in that: Two synchronous wheels (303) are provided on the outer wall of the other side of the cooling box (3), and the two synchronous wheels (303) correspond to the two rotating rods (401) one by one and are fixedly connected to one side thereof. The outer walls of the two synchronous wheels (303) are provided with an adaptive synchronous belt (304).

5. The methanol-to-olefins refrigeration device according to claim 3, characterized in that: A motor (4) is installed on an outer wall of one side of the cooling box (3), and an output shaft of the motor (4) is rotatably connected to one end of one of the rotating rods (401).

6. The methanol-to-olefins refrigeration device according to claim 1, characterized in that: A cavity (203) is provided inside the reaction furnace (2), and the reaction furnace (2) is located at the top of the inner wall of the cavity (203). The serpentine delivery pipe (305) is located in the cavity (203) and is in contact with the outer wall of the reaction chamber (204).

7. The methanol-to-olefins refrigeration device according to claim 1, characterized in that: One end of the top of the reaction furnace (2) is connected to a methanol feed pipe (201) communicating with the interior thereof, and the other end of the top of the reaction furnace (2) is provided with a catalyst feed pipe (202).

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