CN213680465U

CN213680465U - Efficient methanol synthesis control device

Info

Publication number: CN213680465U
Application number: CN202022913326.7U
Authority: CN
Inventors: 韩舜才; 张波; 刘锦光; 朱渊; 张磊
Original assignee: Inner Mongolia China Coal Yuanxing Energy Chemical Co ltd
Current assignee: Inner Mongolia China Coal Yuanxing Energy Chemical Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-07-13
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses an efficient methanol synthesis control device, which is arranged on a methanol synthesis loop, wherein the methanol synthesis loop is provided with a methanol synthesis tower R3301, a synthesis tower R3302, a circulating compressor and a loop heat exchanger, and the synthesis loop is provided with a first bypass pipeline and a second bypass pipeline; the first bypass pipeline is connected with the methanol synthesis tower R3301 and the synthesis tower R3302, and the hot gas of the steam-generating synthesis tower R3301 is directly sent to the top of the synthesis tower R3302 so as to control the feeding temperature of the catalyst bed layer entering the synthesis tower R3302; the first bypass pipeline is connected with a circulating compressor, a loop heat exchanger and a synthesis tower R3302 to mix circulating gas with lower temperature and hot tower gas from the loop heat exchanger, and the temperature curve of the synthesis tower R3302 is controlled to be within a safe range. The utility model discloses can be in whole catalyst life for the methanol synthesis tower keeps the best operating condition.

Description

Efficient methanol synthesis control device

Technical Field

The utility model relates to an efficient methyl alcohol synthesis controlling means.

Background

Methanol is an important organic chemical product, and the main raw materials for producing the methanol are coal and natural gas at present.

In methanol production, a catalyst is required to promote the chemical reaction, and part of the catalyst has a service life. The optimum operating conditions for the catalyst require a controlled temperature.

In the current methanol synthesis process, no proper scheme is available, the temperature of the methanol synthesis tower can be efficiently and accurately controlled, and the optimal operation effect cannot be achieved in the methanol synthesis tower in a part of time during synthesis.

SUMMERY OF THE UTILITY MODEL

The utility model provides an efficient methyl alcohol synthesis controlling means to not enough among the prior art, on the installation was applicable to methyl alcohol synthetic loop, can be in whole catalyst life for the methyl alcohol synthetic tower keeps the best operating condition.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve: a high-efficiency methanol synthesis control device is arranged on a methanol synthesis loop, the methanol synthesis loop is provided with a methanol synthesis tower R3301, a synthesis tower R3302, a circulating compressor and a loop heat exchanger, and the synthesis loop is provided with a first bypass pipeline and a second bypass pipeline; the first bypass pipeline is connected with the methanol synthesis tower R3301 and the synthesis tower R3302, and the hot gas of the steam-generating synthesis tower R3301 is directly sent to the top of the synthesis tower R3302 so as to control the feeding temperature of the catalyst bed layer entering the synthesis tower R3302; the first bypass pipeline is connected with a circulating compressor, a loop heat exchanger and a synthesis tower R3302 to mix circulating gas with lower temperature and hot tower gas from the loop heat exchanger, and the temperature curve of the synthesis tower R3302 is controlled to be within a safe range.

Preferably, a first adjusting part is arranged on the first bypass pipeline, an upper adjusting cavity and a lower adjusting cavity are arranged in the first adjusting part up and down, the front ends of the upper adjusting cavity and the lower adjusting cavity are respectively provided with an upper inlet hole and a lower inlet hole, the front sides of the upper adjusting cavity and the lower adjusting cavity are provided with connecting pipelines for communicating the upper adjusting cavity and the lower adjusting cavity, and a lower outlet hole is arranged below the front side of the lower adjusting cavity; the upper adjusting cavity and the lower adjusting cavity are both internally provided with a movable blocking column, the tail end of the movable blocking column is provided with a return spring, and the return spring pushes the movable blocking column to the front side; when the movable blocking column moves to the front sides of the upper adjusting cavity and the lower adjusting cavity, the upper inlet hole and the connecting pipeline can be blocked, and the lower inlet hole, the connecting pipeline and the lower outlet hole can be blocked by the lower part.

Preferably, the tail ends of the upper adjusting cavity and the lower adjusting cavity are respectively provided with an electromagnet, a protective washer is arranged outside the electromagnet, the tail end of the movable blocking column is provided with a permanent magnetic disc, and after the electromagnet is electrified, electromagnetic force is generated to attract the permanent magnetic disc to drive the movable blocking column to compress the reset spring to move towards the electromagnet, so that balance is finally achieved; after the current of the electromagnet is changed, the intensity of the magnetic field generated by the electromagnet can be changed, so that the moving amount of the movable plug is changed.

Preferably, the distance measuring heads are arranged on the side walls of the tail ends of the upper adjusting cavity and the lower adjusting cavity, and the distance measuring heads detect the distance from the movable plugging column to the distance measuring heads, so that the moving amount of the movable plugging column is calculated, and the opening flux of the connecting pipeline is obtained.

Preferably, the upper inlet hole is in threaded connection with a first auxiliary joint, and the first auxiliary joint is connected with the loop heat exchanger through a connecting pipeline; the lower inlet hole is in threaded connection with a first air inlet joint, and the first air inlet joint is connected with a methanol synthesis tower R3301 through a pipeline; the lower outlet hole is in threaded connection with a first air outlet joint, and the first air outlet joint is connected with the top of the synthesis tower R3302 through a pipeline.

Preferably, a second adjusting part is arranged on the second bypass pipeline, a mixing bin is arranged in the second adjusting part, an air outlet hole and a cold air hole are arranged at the bottom of the mixing bin, and a heat return air hole and an air inlet hole are sequentially arranged on one side wall of the mixing bin from top to bottom; the top of the second adjusting part is provided with an air cylinder, the air cylinder is provided with a driving rod extending into the mixing bin, the driving rod and the second adjusting part are subjected to airtight treatment, the end part of the driving rod is provided with a movable blocking disc, and the movable blocking disc is driven by the air cylinder to move upwards and downwards; when the movable blocking disc descends to the bottommost part, the air outlet hole and the cold air hole are blocked simultaneously, so that the mixing bin is communicated with the heat return air hole and the air inlet hole; and the movable blocking disc moves upwards to the top to block the regenerative air hole, so that the mixing bin is communicated with the air inlet hole, the air outlet hole and the cold air hole.

Preferably, a lower pit is arranged at the bottom of the mixing bin close to the air outlet, and a lower temperature measuring probe is arranged in the lower pit; an upper pit is arranged at the top of the mixing bin close to the heat return air hole, and an upper temperature measuring probe is arranged in the upper pit; the lower temperature measuring probe and the upper temperature measuring probe are in signal connection with the cylinder.

Preferably, the air outlet hole is in threaded connection with a second air outlet joint, and a pipeline of the second air outlet joint is connected with an inlet of the synthesis tower R3302; the cold air hole is in threaded connection with a cold air joint, a pipeline of the cold air joint is connected with a circulating compressor, and an electromagnetic valve is arranged on the pipeline and used for controlling the flow of cold air; the heat regeneration air hole is in threaded connection with a circulating heat regeneration joint, and a pipeline of the circulating heat regeneration joint is connected with a heater; the air inlet is in threaded connection with a second air inlet joint, and the second air inlet joint is connected with the regenerative heat exchanger through a pipeline.

Preferably, the distance from the lowest position of the air inlet hole to the bottom of the mixing bin is L1, and the distance from the lowest position of the heat return air hole to the top of the mixing bin is L2; the thickness of the movable closure disc is less than L1 and greater than L2.

Preferably, a third bypass pipeline is further arranged on the synthesis loop, and the third bypass pipeline is located on a shell side bypass of the loop heat exchanger to heat the outer side of the loop heat exchanger, so that the wax precipitation phenomenon is avoided. Possible wax deposition in the loop exchanger can negatively affect the heat exchange, and this bypass allows a more accurate control of the feed temperature to the synthesis column.

The utility model provides an efficient methyl alcohol synthesis controlling means, the installation has three bypass pipelines on being applicable to methyl alcohol synthetic loop, has set up first regulation part and second regulation part on first bypass pipeline and second bypass pipeline and has carried out intelligent regulation control to can be in whole catalyst life, make the methyl alcohol synthetic tower keep the best operating condition.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be discussed below, it is obvious that the technical solutions described in conjunction with the drawings are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings can be obtained according to the embodiments shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the first adjusting portion of the present invention.

Fig. 2 is a schematic view of a housing structure of the first adjusting portion of the present invention.

Fig. 3 is a schematic structural diagram of the second adjusting portion of the present invention.

Fig. 4 is a schematic view of a housing structure of the second adjusting portion of the present invention.

FIG. 5 is a flow diagram of the methanol synthesis process of the present invention.

In the figure: the device comprises a first adjusting part 1, a first air inlet joint 101, a first air outlet joint 102, a first auxiliary joint 103, an upper adjusting cavity 11, an upper inlet hole 111, a lower adjusting cavity 12, a lower inlet hole 121, a connecting pipeline 13, a lower outlet hole 15, an electromagnet 16, a protective gasket 17, a distance measuring head 18, a second adjusting part 2, a second air inlet joint 21, a second air outlet joint 22, a cold air joint 23, a circulating heat regeneration joint 24, a movable blocking column 3, a permanent magnet disc 31, a reset spring 32, a mixing bin 4, an air inlet 41, an air outlet hole 42, a cold air hole 43, a heat regeneration air hole 44, a lower temperature measuring probe 45, an upper temperature measuring probe 46, an air cylinder 5, a driving rod 51 and a movable blocking disc 52.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments described in the present disclosure, all other embodiments obtained by a person skilled in the art without creative efforts are within the scope of the present disclosure.

As shown in fig. 1 to 5, a high-efficiency methanol synthesis control device is installed on a methanol synthesis loop, wherein a methanol synthesis tower R3301, a synthesis tower R3302, a circulation compressor and a loop heat exchanger are arranged on the synthesis loop, and a first bypass pipeline and a second bypass pipeline are arranged on the synthesis loop; the first bypass pipeline is connected with the methanol synthesis tower R3301 and the synthesis tower R3302, and the hot gas of the steam-generating synthesis tower R3301 is directly sent to the top of the synthesis tower R3302 so as to control the feeding temperature of the catalyst bed layer entering the synthesis tower R3302; the first bypass pipeline is connected with a circulating compressor, a loop heat exchanger and a synthesis tower R3302 to mix circulating gas with lower temperature and hot tower gas from the loop heat exchanger, and the temperature curve of the synthesis tower R3302 is controlled to be within a safe range.

The first bypass pipeline is provided with a first adjusting part 1, an upper adjusting cavity 11 and a lower adjusting cavity 12 are vertically arranged in the first adjusting part 1, the front ends of the upper adjusting cavity 11 and the lower adjusting cavity 12 are respectively provided with an upper inlet hole 111 and a lower inlet hole 121, the front sides of the upper adjusting cavity 11 and the lower adjusting cavity 12 are provided with a connecting pipeline 13 for communicating the upper adjusting cavity and the lower adjusting cavity, and a lower outlet hole 15 is arranged below the front side of the lower adjusting cavity 12; a movable blocking column 3 is arranged in each of the upper adjusting cavity 11 and the lower adjusting cavity 12, a return spring 32 is arranged at the tail end of each movable blocking column 3, and the return springs 32 push the movable blocking columns 3 out towards the front side; when the movable blocking column 3 moves to the front sides of the upper adjusting cavity 11 and the lower adjusting cavity 12, the upper part can block the upper inlet hole 111 and the connecting pipeline 13, and the lower part can block the lower inlet hole 121, the connecting pipeline 13 and the lower outlet hole 15.

The tail ends of the upper adjusting cavity 11 and the lower adjusting cavity 12 are respectively provided with an electromagnet 16, the outer side of the electromagnet 16 is provided with a protective washer 17, the tail end of the movable blocking column 3 is provided with a permanent magnetic disc 31, after the electromagnet 16 is electrified, electromagnetic force is generated to attract the permanent magnetic disc 31, the movable blocking column 3 is driven to compress the reset spring 32 to move towards the electromagnet 16, and finally balance is achieved; after the current of the electromagnet 16 is changed, the intensity of the magnetic field generated by the electromagnet can be changed, so that the moving amount of the movable plugging column 3 is changed.

The distance measuring head 18 is arranged on the side wall of the tail end of the upper adjusting cavity 11 and the side wall of the tail end of the lower adjusting cavity 12, and the distance measuring head 18 detects the distance between the movable blocking column 3 and the distance measuring head, so that the moving amount of the movable blocking column 3 is calculated, and the opening flux of the connecting pipeline 13 is obtained. The distance measuring head 18 is arranged, so that the opening flux of the connecting pipeline 13 is calculated by detecting the moving amount of the two movable plugging columns 3, whether the hot gas input to the top of the synthesis tower R3302 is enough can be calculated, if the hot gas is not enough, the circuit of the electromagnet 16 is continuously increased, the moving amount of the two movable plugging columns 3 is increased, the opening flux of the connecting pipeline 13 is increased, and more hot gas is provided.

The upper inlet hole 111 is in threaded connection with a first auxiliary joint 103, and the first auxiliary joint 103 is connected with a pipeline to connect the loop heat exchanger; the lower inlet hole 121 is in threaded connection with a first air inlet joint 101, and the pipeline of the first air inlet joint 101 is connected with a methanol synthesis tower R3301; the lower outlet hole 15 is connected with a first outlet connector 102 in a threaded manner, and the first outlet connector 102 is connected with the top of the synthesis tower R3302 in a pipeline manner.

The second bypass pipeline is provided with a second adjusting part 2, a mixing bin 4 is arranged in the second adjusting part 2, the bottom of the mixing bin 4 is provided with an air outlet 42 and a cold air hole 43, and one side wall of the mixing bin 4 is sequentially provided with a heat return air hole 44 and an air inlet 41 from top to bottom; the top of the second adjusting part 2 is provided with an air cylinder 5, the air cylinder 5 is provided with a driving rod 51 extending into the mixing bin 4, the driving rod 51 and the second adjusting part 2 are subjected to airtight treatment, the end part of the driving rod 51 is provided with a movable blocking disc 52, and the movable blocking disc 52 is driven by the air cylinder 5 to move upwards and downwards; when the movable blocking disc 52 descends to the bottommost part, the air outlet hole 42 and the cold air hole 43 are blocked simultaneously, so that the mixing bin 4 is communicated with the heat return air hole 44 and the air inlet hole 41; when the movable blocking disc 52 moves upwards to the top, the regenerative air hole 44 is blocked, so that the mixing chamber 4 is communicated with the air inlet hole 41, the air outlet hole 42 and the cold air hole 43.

A lower pit is arranged at the bottom of the mixing bin 4 close to the air outlet 42, and a lower temperature measuring probe 45 is arranged in the lower pit; an upper pit is arranged at the top of the mixing bin 4 close to the regenerative air hole 44, and an upper temperature measuring probe 46 is arranged in the upper pit; the lower temperature measuring probe 45 and the upper temperature measuring probe 46 are in signal connection with the cylinder 5.

The air outlet 42 is in threaded connection with a second air outlet joint 22, and the pipeline of the second air outlet joint 22 is connected with the inlet of the synthesis tower R3302; the cold air hole 43 is in threaded connection with a cold air joint 23, the pipeline of the cold air joint 23 is connected with a circulating compressor, and an electromagnetic valve is arranged on the pipeline to control the flow of cold air; the regenerative air hole 44 is in threaded connection with a circulating regenerative joint 24, and the pipeline of the circulating regenerative joint 24 is connected with a heater; the air inlet 41 is in threaded connection with a second air inlet joint 21, and the second air inlet joint 21 is connected with the regenerative heat exchanger through a pipeline.

When the temperature measuring probe 45 detects that the temperature is too low, the movable blocking disc 52 is driven to block the air outlet 42 and the cold air hole 43, so that cold air cannot enter, and then air conveyed by the second air inlet joint 21 is driven to enter the circulating heat recovery joint 24, returns to the heater for heating, and returns through the second air inlet joint 21. If the upper temperature measuring probe 46 detects that the temperature reaches the requirement, the movable blocking disc 52 is driven to move upwards to block the heat return air hole 44.

When the lower temperature probe 45 detects that the temperature is too high, the electromagnetic valve is driven to work, the flow of cold air is driven to increase, and the temperature is kept appropriate.

The distance from the lowest position of the air inlet 41 to the bottom of the mixing bin 4 is L1, and the distance from the lowest position of the heat return air hole 44 to the top of the mixing bin 4 is L2; the thickness of the moving closure disc 52 is less than L1 and greater than L2.

And a third bypass pipeline is also arranged on the synthesis loop, is positioned on a shell side bypass of the loop heat exchanger, and is used for heating the outer side of the loop heat exchanger to avoid the wax precipitation phenomenon. Possible wax deposition in the loop exchanger can negatively affect the heat exchange, and this bypass allows a more accurate control of the feed temperature to the synthesis column.

The apparatus is provided with three bypass lines, the first of which is used to control the feed temperature to the catalyst bed of the R3302 synthesis column. The first adjusting part 1 works to drive the movable plug in the lower adjusting cavity 12 to move, so that the lower inlet hole 121 is communicated with the lower outlet hole 15, and the hot gas of the steam-generating type synthesis tower R3301 is directly sent to the top of the R3302 synthesis tower. And when the temperature of the synthesis tower R3302 is expected to be too low at the initial stage of the service life of the catalyst, the two electromagnets 16 in the first adjusting part 1 are driven to work together, so that the upper inlet hole 111, the upper adjusting cavity 11 and the connecting pipeline 13 are also connected into the lower adjusting cavity 12, the heat of the loop heat exchanger enters together through the first auxiliary joint 103, and the temperature of the synthesis tower R3302 is quickly increased.

The second bypass is used to connect the recycle gas from the recycle compressor to the inlet of the synthesis column R3302. This bypass is used at the end of catalyst life to mix the "cold" recycle gas with the hot effluent gas from the loop heat exchanger. This allows the temperature profile of R3302 to be controlled within a safe range, thus prolonging circuit operation.

The wax precipitation phenomenon possibly occurring in the loop heat exchanger can cause negative influence on heat exchange, and the third bypass can more accurately control the feeding temperature of the synthesis tower, thereby avoiding the wax precipitation phenomenon.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims, rather than the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an efficient methyl alcohol synthesis controlling means, installs on methyl alcohol synthetic loop, is provided with methyl alcohol synthetic tower R3301, synthetic tower R3302, circulating compressor and return circuit heat exchanger on this synthetic loop, its characterized in that: the synthesis loop is provided with a first bypass pipeline and a second bypass pipeline; the first bypass pipeline is connected with the methanol synthesis tower R3301 and the synthesis tower R3302, and the hot gas of the steam-generating synthesis tower R3301 is directly sent to the top of the synthesis tower R3302 so as to control the feeding temperature of the catalyst bed layer entering the synthesis tower R3302; the first bypass pipeline is connected with a circulating compressor, a loop heat exchanger and a synthesis tower R3302 to mix circulating gas with lower temperature and hot tower gas from the loop heat exchanger, and the temperature curve of the synthesis tower R3302 is controlled to be within a safe range.

2. A high efficiency methanol synthesis control apparatus as claimed in claim 1, wherein: the first bypass pipeline is provided with a first adjusting part, an upper adjusting cavity and a lower adjusting cavity are arranged in the first adjusting part up and down, the front ends of the upper adjusting cavity and the lower adjusting cavity are respectively provided with an upper inlet hole and a lower inlet hole, the front sides of the upper adjusting cavity and the lower adjusting cavity are provided with connecting pipelines for communicating the upper adjusting cavity and the lower adjusting cavity, and a lower outlet hole is arranged below the front side of the lower adjusting cavity; the upper adjusting cavity and the lower adjusting cavity are both internally provided with a movable blocking column, the tail end of the movable blocking column is provided with a return spring, and the return spring pushes the movable blocking column to the front side; when the movable blocking column moves to the front sides of the upper adjusting cavity and the lower adjusting cavity, the upper inlet hole and the connecting pipeline can be blocked, and the lower inlet hole, the connecting pipeline and the lower outlet hole can be blocked by the lower part.

3. A high efficiency methanol synthesis control apparatus as claimed in claim 2, wherein: electromagnets are arranged at the tail ends of the upper adjusting cavity and the lower adjusting cavity, a protective washer is arranged outside the electromagnets, a permanent magnetic disc is arranged at the tail end of the movable plug column, and after the electromagnets are electrified, electromagnetic force is generated to attract the permanent magnetic disc and drive the movable plug column to compress the reset spring to move towards the electromagnets, so that balance is finally achieved; after the current of the electromagnet is changed, the intensity of the magnetic field generated by the electromagnet can be changed, so that the moving amount of the movable plug is changed.

4. A high efficiency methanol synthesis control apparatus as claimed in claim 3, wherein: and distance measuring heads are arranged on the side walls of the tail ends of the upper adjusting cavity and the lower adjusting cavity and used for detecting the distance between the movable plugging column and the distance measuring heads, so that the moving amount of the movable plugging column is calculated, and the opening flux of the connecting pipeline is obtained.

5. A high efficiency methanol synthesis control apparatus as claimed in claim 2, wherein: the upper inlet is in threaded connection with a first auxiliary joint, and the first auxiliary joint is connected with a pipeline to connect the loop heat exchanger; the lower inlet hole is in threaded connection with a first air inlet joint, and the first air inlet joint is connected with a methanol synthesis tower R3301 through a pipeline; the lower outlet hole is in threaded connection with a first air outlet joint, and the first air outlet joint is connected with the top of the synthesis tower R3302 through a pipeline.

6. A high efficiency methanol synthesis control apparatus as claimed in claim 1, wherein: a second adjusting part is arranged on the second bypass pipeline, a mixing bin is arranged in the second adjusting part, an air outlet hole and a cold air hole are formed in the bottom of the mixing bin, and a heat return air hole and an air inlet hole are sequentially formed in one side wall of the mixing bin from top to bottom; the top of the second adjusting part is provided with an air cylinder, the air cylinder is provided with a driving rod extending into the mixing bin, the driving rod and the second adjusting part are subjected to airtight treatment, the end part of the driving rod is provided with a movable blocking disc, and the movable blocking disc is driven by the air cylinder to move upwards and downwards; when the movable blocking disc descends to the bottommost part, the air outlet hole and the cold air hole are blocked simultaneously, so that the mixing bin is communicated with the heat return air hole and the air inlet hole; and the movable blocking disc moves upwards to the top to block the regenerative air hole, so that the mixing bin is communicated with the air inlet hole, the air outlet hole and the cold air hole.

7. A high efficiency methanol synthesis control apparatus as claimed in claim 6, wherein: a lower pit is arranged at the bottom of the mixing bin close to the air outlet, and a lower temperature measuring probe is arranged in the lower pit; an upper pit is arranged at the top of the mixing bin close to the heat return air hole, and an upper temperature measuring probe is arranged in the upper pit; the lower temperature measuring probe and the upper temperature measuring probe are in signal connection with the cylinder.

8. A high efficiency methanol synthesis control apparatus as claimed in claim 7, wherein: the air outlet hole is in threaded connection with a second air outlet joint, and the second air outlet joint is connected with the inlet of the synthesis tower R3302 through a pipeline; the cold air hole is in threaded connection with a cold air joint, a pipeline of the cold air joint is connected with a circulating compressor, and an electromagnetic valve is arranged on the pipeline and used for controlling the flow of cold air; the heat regeneration air hole is in threaded connection with a circulating heat regeneration joint, and a pipeline of the circulating heat regeneration joint is connected with a heater; the air inlet is in threaded connection with a second air inlet joint, and the second air inlet joint is connected with the regenerative heat exchanger through a pipeline.

9. A high efficiency methanol synthesis control apparatus as claimed in claim 8, wherein: the distance from the lowest position of the air inlet hole to the bottom of the mixing bin is L1, and the distance from the lowest position of the heat return air hole to the top of the mixing bin is L2; the thickness of the movable closure disc is less than L1 and greater than L2.

10. A high efficiency methanol synthesis control apparatus as claimed in claim 1, wherein: and a third bypass pipeline is also arranged on the synthesis loop, is positioned on a shell side bypass of the loop heat exchanger, and is used for heating the outer side of the loop heat exchanger to avoid the wax precipitation phenomenon.