A heat coupled multi-effect rectification device for producing methanol

Abstract

The present application relates to the technical field of methanol production equipment, in particular to a heat coupling multi-effect rectification equipment for producing methanol, which comprises a steam treatment structure and a heat coupling rectification structure, the steam treatment structure is in limiting communication with the side end of the heat coupling rectification structure, the steam treatment structure is used for steam heating work of the heat coupling rectification structure, the heat coupling rectification structure comprises a preliminary treatment component and a secondary treatment component, the secondary treatment component is in sealing communication with the side end of the preliminary treatment component, the preliminary treatment component comprises a steam discharge control pipe, a connecting pipe, an external lead guide seat pipe, a control machine seat, a second methanol guide pipe and an empty pipe, the lower end of the steam discharge control pipe is in communication with the connecting pipe, the lower end of the connecting pipe is in communication with the control machine seat, the front end of the control machine seat is in communication with the external lead guide seat pipe, and the side end of the steam discharge control pipe is in through communication with the empty pipe. Through the arrangement of the steam treatment structure and the heat coupling rectification structure, uniform heat treatment work can be carried out, which better helps the rectification work of methanol.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of methanol production equipment, in particular to a heat coupling multi-effect rectification equipment for producing methanol. BACKGROUND

[0002] Methanol is an organic compound, which is the simplest saturated monohydric alcohol, and its chemical formula is CH3OH / CH4O, the molecular weight is 32.04, the boiling point is 64.7℃, modern methanol is directly manufactured from carbon monoxide, carbon dioxide and hydrogen in an industrial process of catalytic action, methanol is very light, volatile, colorless, flammable, and has a very similar odor to ethanol, and the heat coupling multi-effect rectification equipment is used for producing methanol to extract methanol.

[0003] As the closest prior art, Chinese patent publication No. CN113004120A belongs to the technical field of rectification, and relates to a formaldehyde rectification energy-saving equipment and an optimized process, in particular to a water-saving and emission-reducing methanol heat coupling rectification system and a rectification method. In the system, a four-tower structure is adopted, which includes a pressurized tower, a medium-pressure tower, an atmospheric tower and a recovery tower installed in sequence, and a pre-tower and a washing tower are also installed before the recovery tower. A heat exchange network is installed in the system, which includes a multi-stage preheater. The high-temperature refined methanol product output from the pressurized tower, the medium-pressure tower and the atmospheric tower is used as a heat source to enter the first stage of the multi-stage preheater, and the crude methanol raw material input into the pre-tower is preheated. Based on the structure of the above-mentioned system, a corresponding rectification method is derived. On the one hand, the waste heat of the system is utilized, and on the other hand, the output mode of a small amount of alcohols in the atmospheric product tower is improved, that is, the energy in the system is effectively utilized, and the problem of system waste discharge is solved.

[0004] At present, the heat coupling multi-effect rectification equipment for producing methanol and the structure of the above-mentioned case are mostly treated by separate heating method when in use, so that the methanol can be extracted in the heat coupling rectification equipment. However, when the equipment is in use, the temperature control of the whole equipment needs to be enhanced, so that the mixed liquid can be uniformly heated, which is beneficial to the extraction of methanol. Therefore, an equipment needs to be improved for the above-mentioned problems. SUMMARY

[0005] In view of the problems in the prior art, the present application provides a heat coupling multi-effect rectification equipment for producing methanol.

[0006] The technical scheme adopted by the present application to solve the technical problems is: a heat coupling multi-effect rectification equipment for producing methanol, comprising a steam treatment structure and a heat coupling rectification structure, the steam treatment structure is in limiting communication with the side end of the heat coupling rectification structure, and the steam treatment structure is used for steam heating work of the heat coupling rectification structure.

[0007] The heat coupling rectification structure comprises a primary processing component and a secondary processing component, the side end of the primary processing component is sealingly connected with the secondary processing component, the primary processing component comprises a steam guide control pipe, a connecting pipe, an externally connected guide seat pipe, a control seat, a second methanol guide pipe and an empty pipe, the lower end of the steam guide control pipe is connected with the connecting pipe, the lower end of the connecting pipe is connected with the control seat, the front end of the control seat is connected with the externally connected guide seat pipe, the side end of the steam guide control pipe is in through connection with the empty pipe, and the side end of the empty pipe is connected with the second methanol guide pipe.

[0008] The bottom of the steam guide control pipe is connected with an internal heat seat, the lower end of the internal heat seat is connected with a first support communication seat, the lower end of the first support communication seat is connected with a heating support pipe, the lower end of the heating support pipe is connected with a second support communication seat, and the secondary processing component comprises a sealing ring seat.

[0009] Specifically, the steam treatment structure comprises a liquid guide pipe, a storage pipe seat, a heating control seat, a sealing container, a butt joint guide valve seat, a communication branch pipe, a matching guide pipe, a steam guide pipe, a steam valve seat, a pressurizing control pipe, a pressure booster and a safety control seat, the front end of the liquid guide pipe is connected with the storage pipe seat, the front end of the storage pipe seat is connected with the sealing container, the side end of the sealing container is provided with the heating control seat, the heating control seat is used for heating work in the sealing container, the other side of the sealing container is connected with the pressurizing control pipe, the side end of the pressurizing control pipe is connected with the pressure booster, the pressure booster is connected with the safety control seat, the steam treatment structure is used for generating and transmitting hot steam, the pressure booster can pressurize the sealing container through the pressurizing control pipe, the liquid in the sealing container is heated by the heating control seat, high-pressure heated steam is formed, the heated steam is guided into the sealing ring seat through the butt joint guide valve seat, the communication branch pipe, the matching guide pipe, the steam guide pipe and the steam valve seat, the mixed liquid in the sealing ring seat is heated, the heated steam is transmitted to the center of the sealing ring seat, the mixed liquid in the sealing ring seat is heated, the homogenization degree of heating is improved, and the extraction of methanol is facilitated.

[0010] Specifically, the upper end of the sealing container is connected with the butt joint guide valve seat, the upper end of the butt joint guide valve seat is fixedly connected with the communication branch pipe, the front end of the communication branch pipe is fixedly connected with the matching guide pipe, the front end of the matching guide pipe is fixedly connected with the steam guide pipe, and the side end of the steam guide pipe is fixedly connected with the steam valve seat.

[0011] Specifically, the secondary processing component further comprises a drainage guide pipe, a shunt control pipe, a secondary reaction seat, a discharge pipe, an adapter pipe seat and a first methanol guide pipe, a drainage guide pipe is arranged in communication with the side end bottom of the sealing ring seat, a shunt control pipe is fixedly arranged in communication with the side end of the drainage guide pipe, a secondary reaction seat is fixedly arranged in communication with the side end of the shunt control pipe, through the structural arrangement of the heat coupling rectification structure, steam passes through the second support communication seat, the heating branch pipe, the first support communication seat and the built-in heat seat, so as to heat the sealing ring seat, meanwhile, an electric heater is arranged on the sealing ring seat, so that double heating treatment can be carried out, after the liquid is preliminarily extracted, the liquid can reach the inside of the secondary reaction seat and be subjected to secondary extraction work, at this time, the electric heater in the secondary reaction seat is centrally heated, so that secondary thermal treatment is realized, methanol can be transmitted through the discharge pipe and the first methanol guide pipe, and waste liquid can be guided and discharged through the adapter pipe seat, so that industrialized methanol extraction treatment work is realized.

[0012] Specifically, the secondary reaction seat is fixedly arranged in communication with the adapter pipe seat at the side end, and is fixedly arranged in communication with the discharge pipe at the upper end.

[0013] Specifically, the first methanol guide pipe and the second methanol guide pipe are arranged in butt joint communication for transmission of methanol extract.

[0014] Specifically, the left upper portion of the sealing ring seat is provided with a feed inlet for guiding the mixed liquid, and the bottom of the second support communication seat is arranged in communication with the steam valve seat.

[0015] Specifically, the upper end of the built-in heat seat is arranged in communication with the external guide seat pipe through the steam guiding and discharging control pipe, the connecting pipe and the control machine seat for transmission of cooled steam, and the transmission of steam adopts sealed transmission treatment.

[0016] Specifically, a one-way control valve is mounted on the discharge pipe, and the one-way control valve is used for one-way protection to prevent methanol steam from entering the secondary reaction seat.

[0017] Specifically, a first electric heater is mounted on the sealing ring seat, and a second electric heater is mounted on the secondary reaction seat.

[0018] The beneficial effects of the present application are as follows:

[0019] One, the steam treatment structure of the application is provided with a structure for generating and transmitting hot steam. The booster can pressurize the sealed container through the pressurizing control pipe. The liquid in the sealed container can be heated by the heating control seat to form high-pressure heated steam. The steam is introduced into the sealed ring seat through the docking guide valve seat, the communication branch pipe, the matching guide pipe, the steam guide pipe and the steam valve seat. The mixed liquid in the sealed ring seat is heated. The heated steam is transmitted to the center of the sealed ring seat. The internal heating treatment can improve the uniformity of heating and facilitate the extraction of methanol.

[0020] Two, the heat coupling distillation structure of the application is provided with a structure for heating the sealed ring seat through the second support communication seat, the heating branch pipe, the first support communication seat and the built-in heat seat. At the same time, an electric heater is arranged on the sealed ring seat to perform double heating treatment. After the preliminary extraction of the liquid, the liquid can reach the inside of the secondary reaction seat to perform secondary extraction work. At this time, the electric heater in the secondary reaction seat performs central heating to realize secondary thermal treatment. Methanol can be transmitted through the discharge pipe and the first methanol guide pipe. Waste liquid can be discharged through the matching pipe seat to realize industrialized methanol extraction treatment. BRIEF DESCRIPTION OF DRAWINGS

[0021] The application will be further described below in combination with the drawings and examples.

[0022] Figure 1 It is a front perspective view of the main body of the application.

[0023] Figure 2 It is a side perspective view of the main body of the application.

[0024] Figure 3 It is a rear perspective view of the main body of the application.

[0025] Figure 4 It is a front perspective view of the steam treatment structure of the application.

[0026] Figure 5 It is a front perspective view of the heat coupling distillation structure of the application.

[0027] Figure 6 It is a split view of the heat coupling distillation structure of the application.

[0028] Figure 7 It is a front perspective view of the preliminary treatment component of the application.

[0029] Figure 8 It is an enlarged view of A in the application. Figure 7 ​

[0030] Figure 9 Front perspective view of the schematic structure of the second embodiment of the subject-matter of the present application;

[0031] Figure 10 Front perspective view of the schematic structure of the third embodiment of the subject-matter of the present application.

[0032] In the figure: 1-steam treatment structure, 2-heat coupled rectification structure, 3-liquid guide pipe, 4-storage pipe base, 5-heating control base, 6-sealed container, 7-butted guide valve base, 8-communication branch pipe, 9-matching guide pipe, 10-steam guide pipe, 11-steam valve base, 12-pressurization control pipe, 13-pressurizer, 14-safety control base, 15-primary treatment component, 16-secondary treatment component, 17-sealing ring base, 18-drainage guide pipe, 19-shunt control pipe, 20-secondary reaction base, 21-discharge pipe, 22-adapted pipe base, 23-first methanol guide pipe, 24-steam drainage control pipe, 25-connection pipe, 26-externally connected guide base pipe, 27-control machine base, 28-second methanol guide pipe, 29-empty pipe, 30-embedded heating base, 31-first support communication base, 32-heating branch pipe, 33-second support communication base, 34-one-way control valve, 35-first electric heater, 36-second electric heater. DETAILED DESCRIPTION

[0033] In order to enable persons skilled in the art to better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without making creative efforts should fall within the scope of protection of the present application.

[0034] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0035] The present application will be further described below in combination with the drawings. Embodiment 1

[0036] AsFigures 1-8 As shown in the figure, the heat coupling multi-effect rectification equipment for producing methanol comprises a steam treatment structure 1 and a heat coupling rectification structure 2, the side end of the heat coupling rectification structure 2 is limitedly communicated with the steam treatment structure 1, and the steam treatment structure 1 is used for steam heating work of the heat coupling rectification structure 2.

[0037] The heat coupling rectification structure 2 comprises a primary treatment component 15 and a secondary treatment component 16, the side end of the primary treatment component 15 is sealingly communicated with the secondary treatment component 16, the primary treatment component 15 comprises a steam discharge control pipe 24, a connecting pipe 25, an external guide seat pipe 26, a control machine seat 27, a second methanol guide pipe 28 and an empty pipe 29, the lower end of the steam discharge control pipe 24 is communicated with the connecting pipe 25, the lower end of the connecting pipe 25 is communicated with the control machine seat 27, the front end of the control machine seat 27 is communicated with the external guide seat pipe 26, the side end of the steam discharge control pipe 24 is through-communicated with the empty pipe 29, and the side end of the empty pipe 29 is communicated with the second methanol guide pipe 28.

[0038] As shown in the figure, Figure 8 The bottom of the steam discharge control pipe 24 is communicated with an internal heat seat 30, the lower end of the internal heat seat 30 is communicated with a first support communication seat 31, the lower end of the first support communication seat 31 is communicated with a heating branch pipe 32, the lower end of the heating branch pipe 32 is communicated with a second support communication seat 33, the secondary treatment component 16 comprises a sealing ring seat 17, the sealing ring seat 17 is designed by sealing welding, the sealing ring seat 17 stores mixed liquid, the internal heat seat 30, the first support communication seat 31, the heating branch pipe 32 and the second support communication seat 33 are arranged in the center of the sealing ring seat 17, and the steam valve seat 11 is butt-jointed and communicated with the bottom of the second support communication seat 33, at this time, steam is discharged through the second support communication seat 33, the heating branch pipe 32, the first support communication seat 31 and the internal heat seat 30, and the user can guide the mixed liquid into the feeding port on the left upper end of the sealing ring seat 17, at this time, the mixed liquid contacts the internal heat seat 30, the first support communication seat 31, the heating branch pipe 32 and the second support communication seat 33, and can be instantaneously heated.

[0039] As shown in the figure, Figure 4As shown, the steam treatment structure 1 includes a liquid guide pipe 3, a storage pipe base 4, a heating control base 5, a sealed container 6, a docking guide valve base 7, a communication branch pipe 8, a matching guide pipe 9, a steam guide pipe 10, a steam valve base 11, a pressurization control pipe 12, a pressure booster 13 and a safety control base 14, the front end of the liquid guide pipe 3 is in communication with the storage pipe base 4, the front end of the storage pipe base 4 is in communication with the sealed container 6, the side end of the sealed container 6 is provided with the heating control base 5, the heating control base 5 is used for heating work in the sealed container 6, the other side of the sealed container 6 is in communication with the pressurization control pipe 12, the side end of the pressurization control pipe 12 is in communication with the pressure booster 13, the pressure booster 13 is in communication with the safety control base 14, the liquid guide pipe 3 and the storage pipe base 4 in the steam treatment structure 1 pour liquid into the sealed container 6 to extract steam, at this time the heating control base 5 performs heating treatment to realize the internal heating work of the sealed container 6, and at the same time the pressure booster 13 works to introduce pressurized gas into the sealed container 6 through the safety control base 14, the pressure booster 13 and the pressurization control pipe 12, so that the pressure in the sealed container 6 is enhanced, at this time the heating control base 5 is matched with heating to improve the steam temperature, after heating is completed, the high-pressure heated steam is conducted to the communication branch pipe 8 through the docking guide valve base 7, and then introduced into the heat-coupled rectification structure 2 through the matching guide pipe 9, the steam guide pipe 10 and the steam valve base 11 to perform heating work of the heat-coupled rectification structure 2.

[0040] The upper end of the sealed container 6 is in communication with the docking guide valve base 7, the upper end of the docking guide valve base 7 is fixedly in communication with the communication branch pipe 8, the front end of the communication branch pipe 8 is fixedly in communication with the matching guide pipe 9, the front end of the matching guide pipe 9 is fixedly in communication with the steam guide pipe 10, and the side end of the steam guide pipe 10 is fixedly in communication with the steam valve base 11.

[0041] As shown in Figure 6 The secondary treatment component 16 further includes a drainage guide pipe 18, a shunt control pipe 19, a secondary reaction base 20, a discharge pipe 21, an adaptive pipe base 22 and a first methanol guide pipe 23, the side end bottom of the sealed ring base 17 is in communication with the drainage guide pipe 18, the side end of the drainage guide pipe 18 is fixedly in communication with the shunt control pipe 19, and the side end of the shunt control pipe 19 is fixedly in communication with the secondary reaction base 20.

[0042] The side end of the secondary reaction seat 20 is fixedly communicated with the adapter pipe seat 22, the upper end of the secondary reaction seat 20 is fixedly communicated with the discharge pipe 21, the discharge pipe 21 is fixedly communicated with the first methanol guide pipe 23, the sealing ring seat 17 is also used for heating treatment of the mixed liquid, at this time, the methanol is precipitated, and is guided and discharged through the empty pipe 29 and the second methanol guide pipe 28, and at the same time, the steam is guided and discharged through the steam guide and discharge control pipe 24 and the connecting pipe 25, and then is guided through the control machine seat 27 and the external guide seat pipe 26, and is transmitted to the outside, after preliminary rectification, the waste liquid is guided into the inside of the secondary reaction seat 20 through the drainage guide pipe 18 and the shunt control pipe 19, and is used for pumping sealing treatment, at this time, the mixed liquid is in the secondary reaction seat 20, the electric heater in the secondary reaction seat 20 is used for secondary heating treatment, the residual methanol can be guided and discharged through the discharge pipe 21 and the first methanol guide pipe 23, and then the waste liquid is discharged through the adapter pipe seat 22, and the industrialized methanol rectification and extraction work is realized.

[0043] The first methanol guide pipe 23 and the second methanol guide pipe 28 are connected and communicated, and are used for transmission of methanol extract.

[0044] The left upper portion of the sealing ring seat 17 is provided with a feed inlet for guiding the mixed liquid, and the bottom of the second support communication seat 33 is communicated with the steam valve seat 11.

[0045] The upper end of the built-in heat seat 30 is communicated with the steam guide and discharge control pipe 24, the connecting pipe 25, the control machine seat 27 and the external guide seat pipe 26, is used for transmission of the cooled steam, and the transmission of the steam adopts sealed transmission treatment.

[0046] The working principle of the embodiment is as follows: in use, the user installs and combines the steam treatment structure 1 and the heat-coupled rectification structure 2, first starts the steam treatment structure 1, the liquid guide pipe 3 and the storage pipe base 4 in the steam treatment structure 1 pour liquid into the sealed container 6 to extract steam, the heating control base 5 performs heating treatment at this time to realize internal heating of the sealed container 6, and the intensifier 13 works to introduce pressurized gas into the sealed container 6 through the safety control base 14, the intensifier 13 and the pressurization control pipe 12 to strengthen the pressure in the sealed container 6, the heating control base 5 cooperates with heating at this time to raise the steam temperature, after heating is completed, the high-pressure heated steam is conducted to the communication branch pipe 8 through the butt joint guide valve base 7, and then introduced into the heat-coupled rectification structure 2 through the cooperating guide-in pipe 9, the steam guide-in pipe 10 and the steam valve base 11, the steam valve base 11 is in butt joint communication with the bottom of the second support communication base 33, at this time the steam is guided and discharged through the second support communication base 33, the heating branch pipe 32, the first support communication base 31 and the built-in heating base 30, the user can introduce the mixed liquid into the sealed ring base 17 through the feed inlet on the left side of the upper end of the sealed ring base 17, at this time the mixed liquid contacts the built-in heating base 30, the first support communication base 31, the heating branch pipe 32 and the second support communication base 33 to be instantaneously heated, and the mixed liquid in the sealed ring base 17 is also heated at this time, at this time methanol is separated out and guided and discharged through the empty pipe 29 and the second methanol guide pipe 28, and the steam is guided and discharged through the steam guide and discharge control pipe 24 and the connecting pipe 25, and then guided through the control machine base 27 and the external guide base pipe 26 to be transmitted to the outside, after preliminary rectification, the waste liquid is introduced into the secondary reaction base 20 through the drainage guide pipe 18 and the shunt control pipe 19 for pumping sealing treatment, at this time the mixed liquid is in the secondary reaction base 20, the electric heater in the secondary reaction base 20 performs secondary heating treatment, the residual methanol is guided and discharged through the discharge pipe 21 and the first methanol guide pipe 23, and then the waste liquid is discharged through the adaptive pipe base 22 to complete methanol extraction and work. Embodiment 2

[0047] On the basis of embodiment 1, as shown in Figure 9 The discharge pipe 21 is provided with a one-way control valve 34 for one-way protection to prevent methanol steam from entering the secondary reaction base 20.

[0048] In use, the one-way control valve 34 is installed on the discharge pipe 21 to prevent methanol extraction steam from entering the inside of the secondary reaction base 20 to perform one-way protection work and better facilitate industrial methanol extraction work. Embodiment 3

[0049] On the basis of embodiment 2, as shown in Figure 10As shown, the first electric heater 35 is installed on the seal ring seat 17, and the second electric heater 36 is installed on the secondary reaction seat 20.

[0050] In use of the present embodiment, the user installs the first electric heater 35 and the second electric heater 36 on the seal ring seat 17 and the secondary reaction seat 20, so that the seal ring seat 17 and the secondary reaction seat 20 can be heated from outside, preventing rapid loss of heat, and facilitating uniform heating and better heating and extraction of methanol.

[0051] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A thermally coupled multi-effect distillation apparatus for methanol production, characterized in that: It includes a steam treatment structure (1) and a thermally coupled distillation structure (2), wherein the side end of the thermally coupled distillation structure (2) is connected to the steam treatment structure (1), and the steam treatment structure (1) is used for steam heating of the thermally coupled distillation structure (2); The thermally coupled distillation structure (2) includes a preliminary treatment component (15) and a secondary treatment component (16). The secondary treatment component (16) is sealed and connected to the side end of the preliminary treatment component (15). The preliminary treatment component (15) includes a steam exhaust control pipe (24), a connecting pipe (25), an external guide seat pipe (26), a control base (27), a second methanol guide pipe (28), and an empty pipe (29). The lower end of the steam exhaust control pipe (24) is connected to the connecting pipe (25). The lower end of the connecting pipe (25) is connected to the control base (27). The front end of the control base (27) is connected to the external guide seat pipe (26). The side end of the steam exhaust control pipe (24) is connected to the empty pipe (29), and the side end of the empty pipe (29) is connected to the second methanol guide pipe (28). The bottom of the steam exhaust control pipe (24) is connected to a built-in heat seat (30), the lower end of the built-in heat seat (30) is connected to a first support connecting seat (31), the lower end of the first support connecting seat (31) is connected to a heating branch pipe (32), the lower end of the heating branch pipe (32) is connected to a second support connecting seat (33), the secondary processing component (16) includes a sealing ring seat (17), the sealing ring seat (17) adopts a sealed welding design, and the sealing ring seat (17) stores the mixed liquid, while the built-in heat seat (30), the first support connecting seat (31), the heating branch pipe (32), and the second support connecting seat (33) are built into the center of the sealing ring seat (17).

2. The thermally coupled multi-effect distillation apparatus for methanol production according to claim 1, characterized in that: The steam treatment structure (1) includes a liquid guide pipe (3), a storage pipe seat (4), a heating control seat (5), a sealed container (6), a docking guide valve seat (7), a connecting branch pipe (8), a matching inlet pipe (9), a steam inlet pipe (10), a steam valve seat (11), a pressure control pipe (12), a booster (13), and a safety control seat (14). The front end of the liquid guide pipe (3) is connected to the storage pipe seat (4), and the front end of the storage pipe seat (4) is connected to the sealed container (6). The side end of the sealed container (6) is provided with a heating control seat (5), which is used for heating inside the sealed container (6). The other side of the sealed container (6) is connected to the pressure control pipe (12), and the side end of the pressure control pipe (12) is connected to the booster (13). The booster (13) is connected to the safety control seat (14).

3. The thermally coupled multi-effect distillation equipment for methanol production according to claim 2, characterized in that: The upper end of the sealed container (6) is connected to a docking guide valve seat (7), the upper end of the docking guide valve seat (7) is fixedly connected to a connecting branch pipe (8), the front end of the connecting branch pipe (8) is fixedly connected to a matching inlet pipe (9), the front end of the matching inlet pipe (9) is fixedly connected to a steam inlet pipe (10), and the side end of the steam inlet pipe (10) is fixedly connected to a steam valve seat (11).

4. The thermally coupled multi-effect distillation equipment for methanol production according to claim 3, characterized in that: The secondary processing component (16) further includes a drainage conduit (18), a diversion control pipe (19), a secondary reaction seat (20), a discharge pipe (21), an adapter pipe seat (22), and a first methanol guide pipe (23). The bottom of the side end of the sealing ring seat (17) is connected to the drainage conduit (18), the side end of the drainage conduit (18) is fixedly connected to the diversion control pipe (19), and the side end of the diversion control pipe (19) is fixedly connected to the secondary reaction seat (20).

5. The thermally coupled multi-effect distillation apparatus for methanol production according to claim 4, characterized in that: The secondary reaction seat (20) is fixedly connected to the side end of the adapter tube seat (22), and the upper end of the secondary reaction seat (20) is fixedly connected to the discharge pipe (21). The discharge pipe (21) is fixedly connected to the first methanol guide pipe (23).

6. The thermally coupled multi-effect distillation apparatus for methanol production according to claim 5, characterized in that: The first methanol guide tube (23) and the second methanol guide tube (28) are connected and connected for the transmission of methanol extract.

7. A thermally coupled multi-effect distillation apparatus for methanol production according to claim 6, characterized in that: The upper left side of the sealing ring seat (17) is provided with a feed inlet for introducing the mixed liquid, and the bottom of the second support connecting seat (33) is connected to the steam valve seat (11).

8. A thermally coupled multi-effect distillation apparatus for methanol production according to claim 7, characterized in that: The upper end of the built-in heat seat (30) is connected to the external guide seat pipe (26) through the steam guide control pipe (24), connecting pipe (25), and control base (27) to transmit the cooled steam, and the steam transmission adopts a sealed transmission process.

9. A thermally coupled multi-effect distillation apparatus for methanol production according to claim 8, characterized in that: A one-way control valve (34) is installed on the discharge pipe (21). The one-way control valve (34) is used for one-way protection to prevent methanol vapor from entering the secondary reaction seat (20).

10. A thermally coupled multi-effect distillation apparatus for methanol production according to claim 9, characterized in that: A first electric heater (35) is installed on the sealing ring seat (17), and a second electric heater (36) is installed on the secondary reaction seat (20).

Images