A square structure reactor for producing hydrogen from methanol

Abstract

The invention relates to the field of equipment for producing hydrogen from methanol, and in particular to a square structure reactor for producing hydrogen from methanol, comprising a square cabinet for producing hydrogen from methanol by cracking. The square cabinet for producing hydrogen from methanol by cracking comprises a cabinet body, a fixing frame 1 is installed on one side inside the cabinet body, a heat exchanger is installed on the top of the fixing frame 1, a feed pipe is installed on the rear side of the heat exchanger, an end of the feed pipe away from the cabinet body passes through the side wall of the cabinet body, a vaporizer is connected to the front of the heat exchanger through a transmission pipeline, a superheater is connected to the bottom of the vaporizer through a transmission pipeline, the vaporizer is installed on the top of a fixing frame 2, the fixing frame 2 is arranged on one side of the fixing frame 1, and the superheater is arranged at the bottom of the fixing frame 2. The invention can realize the regeneration of an adsorbent inside a storage bin, realize the continuous operation of a gas-liquid separator, avoid the need for shutdown operation, avoid the situation in which multiple groups of separators need to be rotated in traditional design, and greatly reduce cost investment.

Description

Technical Field

[0001] The invention relates to the field of methanol hydrogen production equipment, in particular to a square structure reactor for methanol hydrogen production. Background Art

[0002] As people's understanding of hydrogen energy becomes more popular, the world's hydrogen production has increased year by year, and the methods of hydrogen production are mainly concentrated in the electrolysis of water and the production of hydrogen from oil, coal and natural gas. Among them, the electrolysis of water consumes a lot of electricity, resulting in energy waste. The technology of using methanol to produce hydrogen with a hydrogen purification device has developed rapidly, with abundant resources and low cost. The existing methanol cracking hydrogen production process generally directly cracks methanol at high temperature (750°C-800°C) to obtain a conversion gas mainly containing hydrogen and carbon dioxide (and a small amount of carbon monoxide, methane and water vapor). However, there are some technical problems with the common methanol cracking hydrogen production equipment. When gas-liquid separation and purification are performed after methanol hydrogen production, a variety of adsorbents are usually used. Impurities are removed by pressure swing adsorption to obtain pure hydrogen. However, the adsorbent has an absorption upper limit and usually needs to be regenerated after a period of use before it can be reused. The regeneration requires shutdown, which affects hydrogen production. Some existing coping methods are to add a set of adsorption purification equipment for rotation use. This method not only increases the size of the equipment, but also further increases the investment cost of the equipment, which is not conducive to practical use. At the same time, during regeneration and purification, the gas released from the adsorbent is often still mixed with some hydrogen. Direct discharge and treatment is not only a waste of production resources, but also has certain safety hazards. Therefore, we propose a square structure reactor for methanol hydrogen production to solve the above-mentioned problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a square structure reactor for producing hydrogen from methanol.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a square structure reactor for producing hydrogen from methanol, comprising a methanol cracking hydrogen production cabinet, the methanol cracking hydrogen production cabinet comprising a cabinet, a fixed frame 1 is installed on one side of the cabinet, a heat exchanger is installed on the top of the fixed frame 1, a feed pipe is installed on the rear side of the heat exchanger, and the end of the feed pipe away from the cabinet passes through the side wall of the cabinet, the front of the heat exchanger is connected to a vaporizer through a transmission pipeline, the bottom of the vaporizer is connected to a superheater through a transmission pipeline, the vaporizer is installed on the top of the fixed frame 2, the fixed frame 2 is arranged on one side of the fixed frame 1, the superheater is arranged at the bottom of the fixed frame 2, the rear of the superheater is connected to a cracking reactor through a transmission pipeline, the cracking reactor is arranged at the rear of the fixed frame 2, the cracking reactor is connected to the heat exchanger through a transmission pipeline, the heat exchanger is connected to a cooler through an input pipe, an output pipe is installed at the outlet of the cooler, and the end of the output pipe away from the cooler is connected to a gas-liquid separator, a pump group 1 is arranged at the front of the gas-liquid separator, and the cooler is arranged at the bottom of the fixed frame.

[0005] Preferably, a control panel is provided on one side of the front of the cabinet, and a compartment door is installed on the other side of the front of the cabinet through a hinge. The control panel is electrically connected to the heat exchanger, cracking reactor, vaporizer, cooler, superheater, pump group 1, pump body, gas-liquid separator, pump group 2, servo motor, separation membrane, booster ring and sealing motor.

[0006] Preferably, a regeneration cylinder is installed in the middle part of the gas-liquid separator, a pump body is installed on the top of the regeneration cylinder, a connecting pipe is installed at the output end of the pump body, the input end of the pump body is arranged inside the regeneration cylinder, and the end of the connecting pipe away from the pump body is fixedly connected to an upper separation cylinder, and the upper separation cylinder is installed on pump group one through a side frame, and a lower separation cylinder is arranged at the lower part of the upper separation cylinder, and the lower separation cylinder is fixedly connected to the side of pump group one close to fixed frame two.

[0007] Preferably, a servo motor is installed on the top of the pump group, and the top driving end of the servo motor is fixedly connected to a mounting frame. The outer periphery of the mounting frame is fixedly connected to evenly distributed connecting cylinders, and separation membranes are installed inside the connecting cylinders. One side of the connecting cylinder is arranged between the upper separation cylinder and the lower separation cylinder.

[0008] Preferably, the mounting frame is provided with cover plates at the upper and lower parts, the lower cover plate is mounted on one side of the outer circumference of the lower separation cylinder, the upper cover plate is fixedly connected to the bottom of the telescopic end of the cylinder, and the cylinder is mounted in the middle of one side of the outer circumference of the upper separation cylinder.

[0009] Preferably, a return pipe is fixedly connected to the lower part of the upper separation cylinder near the vaporizer, and the end of the return pipe away from the upper separation cylinder is fixedly connected to the lower part of the front end of the gas-liquid separator. A discharge port is installed at the lower part of the outer periphery of the gas-liquid separator, and an exhaust pipe is installed at the upper part of the outer periphery of the gas-liquid separator.

[0010] Preferably, a discharge pipe is installed on the side of the bottom of the lower separation cylinder close to the second fixing frame, and the side of the discharge pipe away from the lower separation cylinder is connected to a pump group 1, and the output end of the pump group 1 is connected to an exhaust pipe, and the end of the exhaust pipe away from the gas-liquid separator passes through the side wall of the cabinet.

[0011] Preferably, a boosting ring is installed on the end close to the upper separation cylinder and the lower separation cylinder, a sealing seat is installed on the outside of the end close to the boosting ring, and a sealing ring is installed on the outer periphery of the end of the sealing seat close to the connecting cylinder.

[0012] Preferably, the gas-liquid separator is installed on the upper part of the fixed frame three, the pump group two is installed on the bottom of the fixed frame three, the fixed cylinder is installed on the top of the pump group two, the bottom pipe is installed on the top of the fixed cylinder, and the top of the bottom pipe is installed on the bottom of the regeneration cylinder.

[0013] Preferably, the middle part of the outer peripheral side wall of the regeneration cylinder is rotatably connected with evenly distributed placement bins, the middle part of the placement bin is fixedly connected with a partition plate, the interior of the placement bin is divided into two chambers by the partition plate, the interior of the chamber is provided with an adsorbent, the top of the placement bin is fixedly connected to the driving end of the sealed motor, the sealed motor is installed on the upper part of the top surface of the placement bin, and the placement bin is arranged inside the gas-liquid separator.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In actual use, people can start the sealed motor, which can drive the placement bin to rotate through the work of the sealed motor. By rotating the placement bin 180 degrees, the side of the placement bin where the adsorbent is saturated can be turned to the inside of the regeneration cylinder, so that the other side of the placement bin that has been regenerated can be turned to the inside of the gas-liquid separator, thereby realizing continuous operation of the gas-liquid separator and avoiding the need to stop the operation. After the placement bin is rotated, the pressure inside the regeneration cylinder can be changed through pump group 2, so that the gas in the adsorbent after adsorption saturation can be released, and the adsorbent inside the placement bin can be regenerated, avoiding the situation in which multiple groups of separators need to be rotated in traditional designs, greatly reducing cost investment.

[0016] 2. The mixed impurity gas released from the regeneration cylinder can be extracted through the pump body, and the mixed impurity gas can be guided into the upper separation cylinder through the connecting pipe. Then, the mixed impurity gas can be further filtered and separated through the separation membranes in the upper separation cylinder and the lower separation cylinder, so that the gas released by regeneration can be fully selected and utilized. The separated hydrogen will be discharged through the bottom of the lower separation cylinder, and the hydrogen can be introduced into the exhaust pipe for discharge in parallel, thereby achieving full extraction of hydrogen produced from methanol.

[0017] 3. When separation is performed using a separation membrane, when a separation membrane has been used for a predetermined number of times, the servo motor can be started through a time relay, and the servo motor can drive the mounting frame to rotate, so that the next adjacent connecting cylinder can be transferred between the upper separation cylinder and the lower separation cylinder, thereby realizing direct switching of the separation membrane. Through multiple connecting cylinders and separation membranes, the upper separation cylinder and the lower separation cylinder can be operated continuously for a long time, thereby avoiding the situation where each separation membrane needs to be manually replaced immediately after reaching the end of its service life, reducing the frequency of replacing the separation membrane, and facilitating mass production of manufacturing enterprises.

[0018] 4. In daily use, the cover plates at the upper and lower parts of the mounting frame can be used to seal and protect the remaining separation membranes to be used, thereby preventing the separation membranes from accumulating dust when in standby for a long time, which would affect subsequent use. When replacing the separation membrane, the sealing seat and the sealing ring can be inflated through the booster ring to achieve sealing between the upper separation cylinder, the lower separation cylinder and the connecting cylinder, which is beneficial to the membrane separation of mixed impurity gases and can effectively improve the stability of membrane separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front view of a square structure reactor for producing hydrogen from methanol according to the present invention;

[0020] Figure 2 It is a front view schematic diagram of the internal structure of a square structure reactor for producing hydrogen from methanol according to the present invention;

[0021] Figure 3 It is a schematic side view of the internal structure of a square structure reactor for producing hydrogen from methanol according to the present invention;

[0022] Figure 4 It is a rear view schematic diagram of the internal structure of a square structure reactor for producing hydrogen from methanol according to the present invention;

[0023] Figure 5 It is a partial structural schematic diagram of a gas-liquid separator and a servo motor of a square structure reactor for producing hydrogen from methanol according to the present invention;

[0024] Figure 6It is a partial structural schematic diagram of the cover plate and the connecting tube of a square structure reactor for producing hydrogen from methanol according to the present invention;

[0025] Figure 7 It is a schematic diagram of the partial structure of the booster ring of a square structure reactor for producing hydrogen from methanol according to the present invention;

[0026] Figure 8 This is a schematic diagram of the partial structure of a gas-liquid separator in a square structure reactor for producing hydrogen from methanol according to the present invention;

[0027] Fig. 9 This is a schematic diagram of the local structure inside the regeneration cylinder of a square-structured reactor for producing hydrogen from methanol according to the present invention.

[0028] 1. Methanol cracking hydrogen production cabinet; 101. Cabinet; 102. Control panel; 103. Door; 104. Exhaust pipe; 105. Feed pipe; 106. Heat exchanger; 107. Cracking reactor; 108. Vaporizer; 109. Fixed frame 1; 110. Cooler; 111. Superheater; 112. Fixed frame 2; 113. Pump group 1; 114. Pump body; 115. Upper separation cylinder; 116. Cover plate; 117. Connecting cylinder; 118. Lower separation cylinder; 119. Input pipe; 12 0. Output pipe; 121. Connecting pipe; 122. Regeneration cylinder; 123. Gas-liquid separator; 124. Partition plate; 125. Fixed frame three; 126. Pump group two; 127. Fixed cylinder; 128. Bottom pipe; 129. Side frame; 130. Servo motor; 131. Discharge pipe; 132. Return pipe; 133. Separation membrane; 134. Mounting frame; 135. Sealing ring; 136. Sealing seat; 137. Booster ring; 138. Sealing motor; 139. Cylinder; 140. Storage bin. DETAILED DESCRIPTION

[0029] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0030] like Figure 1-Figure 9A square structure reactor for producing hydrogen from methanol is shown, comprising a methanol cracking hydrogen production cabinet 1, wherein the methanol cracking hydrogen production cabinet 1 comprises a cabinet 101, a fixing frame 109 is installed on one side of the cabinet 101, a heat exchanger 106 is installed on the top of the fixing frame 109, a feed pipe 105 is installed on the rear side of the heat exchanger 106, and one end of the feed pipe 105 away from the cabinet 101 passes through the side wall of the cabinet 101, a vaporizer 108 is connected to the front of the heat exchanger 106 through a transmission pipeline, a superheater 111 is connected to the bottom of the vaporizer 108 through a transmission pipeline, the vaporizer 108 is installed on the top of the fixing frame 112, the fixing frame 112 is arranged on one side of the fixing frame 109, the superheater 111 is arranged at the bottom of the fixing frame 112, the rear of the superheater 111 is connected to the cracking reactor 107 through a transmission pipeline, the cracking reactor 107 is arranged at the rear of the fixing frame 112, and the cracking reactor 107 is arranged at the rear of the fixing frame 112. The cracking reactor 107 is connected to the heat exchanger 106 through a transmission pipeline, and the heat exchanger 106 is connected to the cooler 110 through an input pipe 119. The outlet of the cooler 110 is equipped with an output pipe 120, and the end of the output pipe 120 away from the cooler 110 is connected to the gas-liquid separator 123, and the front of the gas-liquid separator 123 is provided with a pump group 113, and the cooler 110 is arranged at the lower part of the fixed frame 109. A control panel 102 is arranged on one side of the front of the cabinet 101, and a warehouse door 103 is installed on the other side of the front of the cabinet 101 through a hinge. The control panel 102 is electrically connected with the heat exchanger 106, the cracking reactor 107, the vaporizer 108, the cooler 110, the superheater 111, the pump group 113, the pump body 114, the gas-liquid separator 123, the pump group 2 126, the servo motor 130, the separation membrane 133, the booster ring 137 and the sealing motor 138;

[0031] Furthermore, in the specific implementation, in actual use, people can introduce methanol into the methanol cracking hydrogen production cabinet 1 through the feed pipe 105, and the methanol can be preheated through the heat exchanger 106. Then the preheated methanol will enter the vaporizer 108, and the methanol can be vaporized through the vaporizer 108. Then the vaporized methanol will be introduced into the superheater 111 to further heat the vaporized methanol, so that the methanol can reach the temperature required for the cracking reaction. Then, the vaporized methanol that meets the temperature standard can be introduced into the cracking reactor 107 through the transmission pipeline. Alcohol can undergo cracking reaction inside the cracking reactor 107 to generate a mixed hydrogen composed of hydrogen, carbon dioxide, methanol and water, completing the methanol hydrogen production work. The produced mixed hydrogen will be discharged into the heat exchanger 106 to preheat the methanol that enters later, and at the same time, the mixed hydrogen can be initially cooled. Thereafter, the preliminarily cooled mixed hydrogen can be introduced into the cooler 110 through the input pipe 119, and the mixed hydrogen can be further cooled through the cooler 110. Thereafter, the cooled mixed hydrogen can be introduced into the gas-liquid separator 123 through the output pipe 120.

[0032] Among them, a regeneration cylinder 122 is installed in the middle of the gas-liquid separator 123, a pump body 114 is installed on the top of the regeneration cylinder 122, a connecting pipe 121 is installed on the output end of the pump body 114, and the input end of the pump body 114 is arranged inside the regeneration cylinder 122. The end of the connecting pipe 121 away from the pump body 114 is fixedly connected to the upper separation cylinder 115, and the upper separation cylinder 115 is installed on the pump group 1 13 through the side frame 129. A lower separation cylinder 118 is arranged at the lower part of the upper separation cylinder 115, and the lower separation cylinder 118 is fixedly connected to the side of the pump group 1 113 close to the fixed frame 2 112. A servo motor 130 is installed on the top of the pump group 113, and a mounting frame 134 is fixedly connected to the top driving end of the servo motor 130. The outer periphery of the mounting frame 134 is fixedly connected to evenly distributed connecting cylinders 117, and separation membranes 133 are installed inside the connecting cylinders 117. The separation membranes 133 are existing technologies, and one side of the connecting cylinder 117 is arranged between the upper separation cylinder 115 and the lower separation cylinder 118.

[0033] Furthermore, in a specific implementation, after the placement bin 140 is rotated, the pressure inside the regeneration barrel 122 can be changed through the pump group 2 126, so that the gas in the adsorbent after adsorption saturation can be released, and the adsorbent inside the placement bin 140 can be regenerated, avoiding the situation in which multiple groups of separators need to be rotated in traditional designs, greatly reducing cost investment, and then the mixed impurity gas released from the regeneration barrel 122 can be extracted through the pump body 114, and the mixed impurity gas can be exported to the upper separation barrel 115 through the connecting pipe 121, and then the mixed impurity gas can be further filtered and separated through the separation membrane 133 in the upper separation barrel 115 and the lower separation barrel 118, so that the gas released by regeneration can be fully selected and utilized, and the separated hydrogen will be discharged through the bottom of the lower separation barrel 118, and the hydrogen can be introduced into the exhaust pipe 104 in parallel for discharge, thereby achieving full extraction of hydrogen produced from methanol, which is beneficial to actual production work.

[0034] Among them, the upper and lower parts of the mounting frame 134 are both provided with cover plates 116, the lower cover plate 116 is installed on one side of the outer circumference of the lower separation cylinder 118, the upper cover plate 116 is fixedly connected to the bottom of the telescopic end of the cylinder 139, the cylinder 139 is installed in the middle of one side of the outer circumference of the upper separation cylinder 115, the lower part of the side of the upper separation cylinder 115 close to the vaporizer 108 is fixedly connected with a return pipe 132, the end of the return pipe 132 away from the upper separation cylinder 115 is fixedly connected to the lower part of the front end of the gas-liquid separator 123, the lower part of the outer circumference of the gas-liquid separator 123 is provided with a discharge port, and the upper part of the outer circumference of the gas-liquid separator 123 is provided with an exhaust pipe 104;

[0035] Furthermore, in a specific implementation, the upper separation cylinder 115 and the lower separation cylinder 118 can be operated continuously for a long time through a plurality of connecting cylinders 117 and separation membranes 133, thereby avoiding the situation where each separation membrane 133 needs to be manually replaced immediately after reaching the end of its service life, reducing the frequency of replacing the separation membranes 133, and facilitating the batch production of manufacturing enterprises. In daily use, the cover plates 116 at the upper and lower parts of the mounting frame 134 can be used to seal and protect the remaining separation membranes 133 to be used, thereby avoiding the separation membranes 133 from accumulating dust when in long-term standby mode, which would affect subsequent use.

[0036] Among them, a discharge pipe 131 is installed on the side of the bottom of the lower separation cylinder 118 close to the second fixing frame 112, and the side of the discharge pipe 131 away from the lower separation cylinder 118 is connected to the pump group 113, and the output end of the pump group 113 is connected to the exhaust pipe 104, and the end of the exhaust pipe 104 away from the gas-liquid separator 123 passes through the side wall of the cabinet 101, and the ends of the upper separation cylinder 115 and the lower separation cylinder 118 close to each other are installed with a booster ring 137, and the ends of the booster ring 137 close to each other are installed with a sealing seat 136, and the outer periphery of the end of the sealing seat 136 close to the connecting cylinder 117 is installed with a sealing ring 135;

[0037] Furthermore, in a specific implementation, when the separation membrane 133 is used for separation, when the use time of a separation membrane 133 reaches a predetermined number of times, the servo motor 130 can be started through the time relay, and the servo motor 130 can drive the mounting frame 134 to rotate, so that the next adjacent connecting cylinder 117 can be transferred to between the upper separation cylinder 115 and the lower separation cylinder 118, so as to realize the direct switching of the separation membrane 133. When replacing the separation membrane 133, the sealing seat 136 and the sealing ring 135 can be inflated through the booster ring 137 to realize the sealing between the upper separation cylinder 115, the lower separation cylinder 118 and the connecting cylinder 117, which is beneficial to the membrane separation of mixed impurity gases and can effectively improve the stability of the membrane separation work.

[0038] The gas-liquid separator 123 is installed on the upper part of the fixed frame 3 125, the pump group 2 126 is installed at the bottom of the fixed frame 3 125, the fixed cylinder 127 is installed on the top of the pump group 2 126, the bottom pipe 128 is installed on the top of the fixed cylinder 127, the top of the bottom pipe 128 is installed on the bottom of the regeneration cylinder 122, the middle of the outer peripheral side wall of the regeneration cylinder 122 is rotatably connected with the evenly distributed placement bins 140, the middle of the placement bins 140 is fixedly connected with the partition plate 124, the interior of the placement bin 140 is divided into two chambers by the partition plate 124, and the interior of the chamber is provided with an adsorbent, and the adsorbent includes 5A molecular sieve: mainly used to absorb moisture in the mixed gas to ensure the dryness of hydrogen; Activated carbon: has excellent adsorption capacity and is used to remove dimethyl ether, methanol and CO2 in the raw gas; Activated alumina: mainly used for dehydration, it is an adsorbent for deep drying of trace water; Molecular sieve: used to remove CH4, CO and CO2 in the raw gas. The top of the storage bin 140 is fixedly connected to the driving end of the sealed motor 138. The sealed motor 138 is installed on the upper top surface of the storage bin 140. The storage bin 140 is set inside the gas-liquid separator 123.

[0039] Furthermore, in a specific implementation, after the mixed hydrogen enters the gas-liquid separator 123, the pressure inside the gas-liquid separator 123 is controlled and the various adsorbents inside different storage bins 140 inside the gas-liquid separator 123 can adsorb the remaining impurities in the mixed hydrogen, thereby purifying the output hydrogen. The remaining purified hydrogen will be discharged through the exhaust pipe 104, and the remaining water will be discharged through the discharge port at the bottom of the gas-liquid separator 123. In actual use, people can start the sealed motor 138, and the storage bin 140 can be driven to rotate through the operation of the sealed motor 138. By rotating the storage bin 140 180 degrees, the side of the storage bin 140 that is saturated with adsorbent can be transferred to the inside of the regeneration cylinder 122, so that the other side of the regenerated storage bin 140 can be transferred to the inside of the gas-liquid separator 123, thereby realizing continuous operation of the gas-liquid separator 123 and avoiding the need to shut down for operation.

[0040] Working principle:

[0041] In actual use, people can introduce methanol into the methanol cracking hydrogen production cabinet 1 through the feed pipe 105, and preheat the methanol through the heat exchanger 106. The preheated methanol will then enter the vaporizer 108, and the methanol can be vaporized through the vaporizer 108. The vaporized methanol will then be introduced into the superheater 111 to further heat the vaporized methanol, so that the methanol can reach the temperature required for the cracking reaction. The vaporized methanol that meets the temperature standard can then be introduced into the cracking reactor 107 through the transmission pipeline. The methanol can undergo a cracking reaction inside the cracking reactor 107 to generate a mixed hydrogen composed of hydrogen, carbon dioxide, methanol and water, thereby completing the methanol hydrogen production work. The produced mixed hydrogen will be discharged The mixed hydrogen gas is introduced into the heat exchanger 106 to preheat the methanol that enters later, and the mixed hydrogen gas is initially cooled. The mixed hydrogen gas after initial cooling can be introduced into the cooler 110 through the input pipe 119, and the mixed hydrogen gas can be further cooled through the cooler 110. The cooled mixed hydrogen gas can be introduced into the gas-liquid separator 123 through the output pipe 120. When the mixed hydrogen gas enters the gas-liquid separator 123, the pressure inside the gas-liquid separator 123 is controlled, and the various adsorbents in the different storage bins 140 inside the gas-liquid separator 123 can adsorb the remaining impurities in the mixed hydrogen gas, thereby purifying the output hydrogen gas. The remaining purified hydrogen gas will be discharged through the exhaust pipe 124. 104 is discharged, and the remaining water is discharged through the discharge port at the bottom of the gas-liquid separator 123. In actual use, people can start the sealing motor 138, and the operation of the sealing motor 138 can drive the placement bin 140 to rotate. By rotating the placement bin 140 180 degrees, the side of the placement bin 140 where the adsorbent is saturated can be transferred to the inside of the regeneration cylinder 122, so that the other side of the placement bin 140 that has been regenerated can be transferred to the inside of the gas-liquid separator 123, so that the continuous operation of the gas-liquid separator 123 can be achieved, and the need to stop the operation can be avoided. After the placement bin 140 is rotated, the pressure inside the regeneration cylinder 122 can be changed through the pump group 2 126, so that the gas in the adsorbent that has been saturated can be transferred. Release, to achieve regeneration of the adsorbent inside the placement bin 140, avoid the need for multiple sets of separators to rotate in traditional designs, and greatly reduce cost investment. Afterwards, the mixed impurity gas released from the regeneration cylinder 122 can be extracted through the pump body 114, and the mixed impurity gas can be exported to the upper separation cylinder 115 through the connecting pipe 121. Afterwards, the mixed impurity gas can be further filtered and separated by the separation membrane 133 in the upper separation cylinder 115 and the lower separation cylinder 118, so that the gas released by regeneration can be fully selected and utilized, and the separated hydrogen will be discharged through the bottom of the lower separation cylinder 118, and the hydrogen can be introduced into the exhaust pipe 104 in parallel for discharge, thereby achieving full extraction of hydrogen produced from methanol.It is beneficial to the actual production work. When the separation membrane 133 is used for separation, when the use time of a separation membrane 133 reaches a predetermined number of times, the servo motor 130 can be started through the time relay, and the servo motor 130 can drive the mounting frame 134 to rotate, so that the next adjacent connecting cylinder 117 can be transferred to between the upper separation cylinder 115 and the lower separation cylinder 118, so that the separation membrane 133 can be directly switched. Through multiple connecting cylinders 117 and separation membranes 133, the upper separation cylinder 115 and the lower separation cylinder 118 can be operated continuously for a long time, so that each separation membrane 133 can be avoided. After reaching the end of its service life, it is necessary to manually The situation of replacement occurs, which reduces the frequency of replacing the separation membrane 133, which is beneficial to the mass production of production enterprises. In daily use, the cover plates 116 at the upper and lower parts of the mounting frame 134 can realize the sealing protection of the remaining separation membranes 133 to be used, so as to avoid the separation membrane 133 from accumulating dust during long-term standby, which affects the subsequent use. When replacing the separation membrane 133, the sealing seat 136 and the sealing ring 135 can be inflated through the booster ring 137 to achieve the sealing between the upper separation cylinder 115, the lower separation cylinder 118 and the connecting cylinder 117, which is beneficial to the membrane separation of mixed impurity gases and can effectively improve the stability of membrane separation.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A square structure reactor for producing hydrogen from methanol, comprising a methanol cracking hydrogen production cabinet (1), characterized in that: The methanol cracking hydrogen production cabinet (1) comprises a cabinet (101), a fixing frame 1 (109) is installed on one side of the cabinet (101), a heat exchanger (106) is installed on the top of the fixing frame 1 (109), a feed pipe (105) is installed on the rear side of the heat exchanger (106), an end of the feed pipe (105) away from the cabinet (101) passes through the side wall of the cabinet (101), the front of the heat exchanger (106) is connected to a vaporizer (108) through a transmission pipeline, the bottom of the vaporizer (108) is connected to a superheater (111) through a transmission pipeline, the vaporizer (108) is installed on the top of the fixing frame 2 (112), and the fixing frame 2 (112) is arranged on one side of the fixing frame 1 (109), The superheater (111) is arranged at the lower part of the second fixing frame (112); the rear part of the superheater (111) is connected to a cracking reactor (107) via a transmission pipeline; the cracking reactor (107) is arranged at the rear part of the second fixing frame (112); the cracking reactor (107) is connected to a heat exchanger (106) via a transmission pipeline; the mixed hydrogen generated by the cracking reaction in the cracking reactor (107) is discharged into the heat exchanger (106) to achieve preheating of methanol and preliminary cooling of the mixed hydrogen; the heat exchanger (106) is connected to a cooler (110) via an input pipe (119); an output pipe (120) is installed at the outlet of the cooler (110); the output pipe (120) is away from the cooler (110). ) is connected to one end of a gas-liquid separator (123), a pump group 1 (113) is arranged at the front of the gas-liquid separator (123), the cooler (110) is arranged at the lower part of the fixing frame 1 (109), a regeneration cylinder (122) is installed in the middle of the gas-liquid separator (123), a pump body (114) is installed on the top of the regeneration cylinder (122), a connecting pipe (121) is installed at the output end of the pump body (114), and the input end of the pump body (114) is arranged inside the regeneration cylinder (122), a discharge port is installed at the lower part of the outer circumference of the gas-liquid separator (123), an exhaust pipe (104) is installed at the upper part of the outer circumference of the gas-liquid separator (123), and the gas-liquid separator (123) is installed on the fixing frame 3 (109). 25), a pump group 2 (126) is installed at the bottom of the fixed frame 3 (125), and the pump group 2 (126) can realize the change of the pressure inside the regeneration cylinder (122), so that the gas in the adsorbent after adsorption saturation can be released, and the adsorbent inside the placement bin (140) can be regenerated. A fixed cylinder (127) is installed on the top of the pump group 2 (126), and a bottom pipe (128) is installed on the top of the fixed cylinder (127). The top of the bottom pipe (128) is installed at the bottom of the regeneration cylinder (122). The middle part of the outer peripheral side wall of the regeneration cylinder (122) is rotatably connected to the evenly distributed placement bins (140), and the middle part of the placement bin (140) is fixedly connected to the partition plate (124).The interior of the placement bin (140) is divided into two chambers by a partition plate (124), and adsorbent is arranged inside the chambers. The top of the placement bin (140) is fixedly connected to the driving end of the sealed motor (138), and the operation of the sealed motor (138) can drive the placement bin (140) to rotate. By rotating the placement bin (140) by 180 degrees, the side of the placement bin (140) where the adsorbent is saturated can be transferred to the inside of the regeneration cylinder (122), so that the other side of the placement bin (140) that has been regenerated can be transferred to the inside of the gas-liquid separator (123), so that the continuous operation of the gas-liquid separator (123) can be achieved. The sealed motor (138) is installed on the upper part of the top surface of the placement bin (140), and the placement bin (140) is arranged inside the gas-liquid separator (123).

2. A square structure reactor for producing hydrogen from methanol according to claim 1, characterized in that: A control panel (102) is provided on one side of the front of the cabinet (101), and a door (103) is installed on the other side of the front of the cabinet (101) via a hinge. The control panel (102) is electrically connected to a heat exchanger (106), a cracking reactor (107), a vaporizer (108), a cooler (110), a superheater (111), a pump group 1 (113), a pump body (114), a gas-liquid separator (123), a pump group 2 (126), a servo motor (130), a separation membrane (133), a booster ring (137), and a sealing motor (138).

3. The square structure reactor for producing hydrogen from methanol according to claim 1, characterized in that: An upper separation cylinder (115) is fixedly connected to one end of the connecting pipe (121) away from the pump body (114); the upper separation cylinder (115) is mounted on the first pump unit (113) via a side frame (129); a lower separation cylinder (118) is provided at the lower portion of the upper separation cylinder (115); the lower separation cylinder (118) is fixedly connected to a side of the first pump unit (113) close to the second fixing frame (112).

4. The square structure reactor for producing hydrogen from methanol according to claim 1, characterized in that: A servo motor (130) is installed on the top of the pump group 1 (113); a mounting frame (134) is fixedly connected to the top driving end of the servo motor (130); evenly distributed connecting cylinders (117) are fixedly connected to the outer periphery of the mounting frame (134); separation membranes (133) are installed inside the connecting cylinders (117); and one side of the connecting cylinders (117) is arranged between an upper separation cylinder (115) and a lower separation cylinder (118).

5. A square structure reactor for producing hydrogen from methanol according to claim 4, characterized in that: The mounting frame (134) is provided with a cover plate (116) at the upper and lower parts, the lower cover plate (116) being mounted on one side of the outer periphery of the lower separation cylinder (118), and the upper cover plate (116) being fixedly connected to the bottom of the telescopic end of the cylinder (139), and the cylinder (139) being mounted on the middle part of one side of the outer periphery of the upper separation cylinder (115).

6. A square structure reactor for producing hydrogen from methanol according to claim 5, characterized in that: A return pipe (132) is fixedly connected to the lower portion of a side of the upper separation cylinder (115) close to the vaporizer (108), and one end of the return pipe (132) away from the upper separation cylinder (115) is fixedly connected to the lower portion of the front end of the gas-liquid separator (123).

7. A square structure reactor for producing hydrogen from methanol according to claim 6, characterized in that: A discharge pipe (131) is installed on a side of the bottom of the lower separation cylinder (118) close to the second fixing frame (112); a side of the discharge pipe (131) away from the lower separation cylinder (118) is connected to a pump group 1 (113); an output end of the pump group 1 (113) is connected to an exhaust pipe (104); an end of the exhaust pipe (104) away from the gas-liquid separator (123) passes through a side wall of the cabinet (101).

8. A square structure reactor for producing hydrogen from methanol according to claim 7, characterized in that: A booster ring (137) is installed at the end of the upper separation cylinder (115) and the lower separation cylinder (118) that is close to each other, a sealing seat (136) is installed on the outside of the end of the booster ring (137) that is close to each other, and a sealing ring (135) is installed on the outer periphery of the end of the sealing seat (136) that is close to the connecting cylinder (117).

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