A nonene recovery tower for tert-butyl carbonate production

Abstract

The present invention relates to the technical field of olefin condensation recovery, and in particular to a nonene recovery tower for tertiary carbonic acid production, comprising a tower body and a plurality of condensing tubes inside, wherein the lower ends of the plurality of condensing tubes are connected to a lower concentrating shell, an air intake pipe is inserted into one side of the lower concentrating shell, the middle section of the air intake pipe is connected to an air intake shell, a transition chamber and a boosting chamber are provided inside the air intake shell, a piston is slidably connected to the inner side of the transition chamber, and a boosting mechanism is provided inside the boosting chamber. The present invention can press the gaseous nonene produced by the tertiary carbonic acid reaction device into the inner side of the plurality of condensing tubes through the boosting mechanism, thereby increasing the pressure of the gaseous nonene inside the condensing tubes, and the pressure increase can increase the boiling point of the nonene, thereby increasing the liquefaction point of the gaseous nonene, so that when the input amount of the gaseous nonene is too large, the gaseous nonene can also be quickly condensed, thereby greatly improving the recovery efficiency of the gaseous nonene.

Description

Technical Field

[0001] The invention relates to the technical field of olefin condensation recovery, in particular to a nonene recovery tower for tertiary carbonic acid production. Background Art

[0002] Nonene is one of the important raw materials for the production of tert-butyl carbonate. When nonene is used to produce tert-butyl carbonate, a large amount of heat will be generated, which will cause the reaction environment to be at a high temperature. The high temperature environment will accelerate the evaporation of liquid nonene into gaseous nonene. In order to reduce the waste of raw materials and avoid environmental pollution, the evaporated gaseous nonene needs to be condensed and recovered.

[0003] After searching, a Chinese patent with announcement number: CN105032111B discloses a condensation recovery device, including a work surface, a reactor, a frame, a collection pipe, a condensation chamber, a crystallization plate, a condensation water channel, and a cooling water tower. The frame is located on the top of the work surface, the collection pipe is located on the top of the reactor, and the two are connected by threads. The condensation chamber is located on the left side of the top of the frame, and the two are connected by threads. The crystallization plate is located in the middle end of the condensation chamber, and it forms an angle of 10°-15° with the bottom of the condensation chamber. The two are welded together. The condensation water channel is located on the back of the crystallization plate, and the two are connected by snaps. The cooling water tower is located on the left side of the top of the work surface.

[0004] Based on the above search and combined with actual problems, it was found that: in the existing devices for gas condensation recovery, when the gas input is too large, the condenser will not be able to transfer the heat of the gas to the outside air in time. The input gas needs to wait longer to release heat and condense into liquid. Moreover, after long-term operation, the temperature of the air outside the device will increase, which reduces the condensation effect of the condenser, thereby reducing the recovery efficiency of nonene. Summary of the invention

[0005] The object of the present invention is to provide a nonene recovery tower for tert-butyl carbonate production to solve the problems raised in the above-mentioned background technology.

[0006] The technical solution of the present invention is: a nonene recovery tower for tertiary carbonic acid production, comprising a tower body and multiple condensing tubes inside, the lower ends of the multiple condensing tubes are connected to a lower concentrating shell, one side of the lower concentrating shell is inserted with an air intake pipe, the middle section of the air intake pipe is connected to an air intake shell, a transition chamber and a boosting chamber are opened inside the air intake shell, a piston one is slidably connected to the inner side of the transition chamber, a boosting mechanism is arranged inside the boosting chamber, and the boosting chamber is connected to the transition chamber through a reversing mechanism; the boosting mechanism comprises a boosting motor installed on the outer side of the air intake shell and a piston two slidably connected to the inner side of the boosting chamber, a rotating shaft is fixed to the driving end of the boosting motor, a rotating arm is fixed to the middle section of the rotating shaft, one end of the rotating arm is movably connected to the piston two through a connecting rod; a heat dissipation mechanism is arranged at the upper end of the tower body; a pressure relief mechanism is arranged at the upper ends of the multiple condensing tubes.

[0007] Preferably, the reversing mechanism includes a rotating block rotatably connected to the inside of the intake shell at a position below the boost chamber, and a boost air pipe connecting the boost chamber and the intake pipe, a first flow channel and a second flow channel vertically connected are opened inside the rotating block, and a one-way valve is provided inside the second flow channel and the boost air pipe, the conduction direction of the one-way valve located on the inner side of the second flow channel points to the first flow channel, and the conduction direction of the one-way valve located on the inner side of the boost air pipe points to the intake pipe, and a reversing drive mechanism is provided between the rotating block and the intake shell.

[0008] Preferably, the reversing drive mechanism includes a gear shaft fixed to one end of the rotating block and extending to the outside of the air intake shell, a baffle fixed to the outside of the air intake shell, and a rack movably arranged on the outside of the air intake shell, a gear meshing with the rack is fixed to the outside of the gear shaft, a rack spring is elastically connected between one end of the rack and the baffle, and an electromagnet that can attract the rack is installed on one side of the baffle.

[0009] Preferably, a through groove is provided inside the rack, and a guide block slidably connected to the inner side of the through groove is fixed to the outer side of the air intake shell.

[0010] Preferably, two magnetic switches arranged vertically are installed on the outer side of the air intake shell near the transition chamber, and both of the magnetic switches are electrically connected to the boost motor and the electromagnet through a control circuit.

[0011] Preferably, a heat insulating material is provided on the outer side of the air intake shell.

[0012] Preferably, the lower end surface of the lower concentrating shell is funnel-shaped, and an outlet pipe is provided on the lower end surface of the lower concentrating shell.

[0013] Preferably, the heat dissipation mechanism includes an air inlet pipe fixed at the upper end of the tower body, and a plurality of air outlet slots opened on the outer side of the tower body corresponding to the position of each condenser tube. A ventilation motor is installed on the inner side of the air inlet pipe, and a rotating shell is fixed to the driving end of the ventilation motor. A plurality of fan blades arranged in a circle are fixed to the outer side of the rotating shell, and a plurality of water spray holes are opened at the lower end of the outer side of the rotating shell. Two centrifugal rods are symmetrically rotatably connected to the inner upper end of the rotating shell, and a counterweight roller is provided at one end of the two centrifugal rods. A water pressure plate is slidably connected to the inner lower end of the rotating shell, and the lower end of the water pressure plate is elastically connected to the inner lower end of the rotating shell through a pressure plate spring. A filling pipe for adding water to the inner side of the rotating shell is provided at the center position of the lower end of the rotating shell.

[0014] Preferably, the pressure relief mechanism includes an upper concentrating shell connected to the upper ends of multiple condensing tubes, one side of the upper concentrating shell is connected to a pressure relief pipe extending to the outside of the tower body, one end of the pressure relief pipe is connected to a cylindrical shell, the inner side of the cylindrical shell is slidably connected to a valve column, one end of the valve column is elastically connected to the inner end of the cylindrical shell through a valve core spring, the other end of the inner side of the cylindrical shell close to the valve column is connected to the pressure relief pipe through a branch pipe, one side of the cylindrical shell is connected to an exhaust pipe, and the inner end of the valve column is provided with a conducting flow channel that can be connected to the pressure relief pipe and the exhaust pipe.

[0015] Preferably, the lower end of the tower body is connected with a discharge pipe for discharging liquid nonene.

[0016] The present invention provides a nonene recovery tower for tert-butyl carbonate production by improvement, which has the following improvements and advantages compared with the prior art:

[0017] Firstly, the present invention can pressurize the gaseous nonene produced by the tert-carbonic acid reaction device into the inner side of a plurality of condensers through a pressurizing mechanism, thereby increasing the pressure of the gaseous nonene inside the condensers. The increased pressure can increase the boiling point of nonene, thereby increasing the liquefaction point of the gaseous nonene. Therefore, when the input amount of the gaseous nonene is too large, the gaseous nonene can be quickly condensed, thereby greatly improving the recovery efficiency of the gaseous nonene.

[0018] Secondly, the present invention can dissipate heat and cool down multiple condensers through the heat dissipation mechanism, increase the temperature difference between the inside and outside of the condenser, thereby accelerating the speed at which the condenser dissipates the heat of gaseous nonene to the outside, thereby further increasing the condensation speed of gaseous nonene and improving the recovery efficiency of nonene.

[0019] Thirdly, the present invention uses a pressure relief mechanism to discharge excess gaseous nonene to the outside when the air pressure inside the multiple condensers is too high, thereby reducing the pressure inside the condensers, maintaining the air pressure inside the condensers within a safe range, preventing the condensers from bursting, and improving the safety of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure inside the tower body of the present invention;

[0023] Figure 3 It is a cross-sectional structural schematic diagram of the present invention;

[0024] Figure 4 It is a cross-sectional structural schematic diagram of the boosting mechanism and the reversing mechanism in the present invention;

[0025] Figure 5 It is a structural schematic diagram of the rotating block in the reversing mechanism of the present invention in the rotating reversing state;

[0026] Figure 6 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 7 For the present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0028] Figure 8 For the present invention Figure 3 Schematic diagram of the enlarged structure at point C in the middle.

[0029] Reference numerals:

[0030] 1. Tower body; 2. Condenser; 3. Lower concentrator shell; 4. Upper concentrator shell; 5. Inlet pipe; 6. Inlet shell; 7. Transition chamber; 8. Piston 1; 9. Boosting chamber; 10. Inlet pipe; 11. Ventilation motor; 12. Rotating shell; 13. Fan blade; 14. Air outlet slot; 15. Discharge pipe; 101. Boosting motor; 102. Rotating shaft; 103. Rotating arm; 104. Connecting rod; 105. Piston 2; 106. Rotating block; 107. First flow channel; 108. Second flow channel; 109. One-way valve; 110. Boosting air pipe ; 111, magnetic switch; 112, rack; 113, baffle; 114, electromagnet; 115, rack spring; 116, gear shaft; 117, gear; 118, through groove; 119, guide block; 201, water pressure plate; 202, centrifugal rod; 203, counterweight roller shaft; 204, water spray hole; 205, filling pipe; 206, pressure plate spring; 301, pressure relief pipe; 302, cylindrical shell; 303, valve column; 304, conduction channel; 305, valve core spring; 306, branch pipe; 307, exhaust pipe. DETAILED DESCRIPTION

[0031] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention provides a nonene recovery tower for tertiary carbonic acid production through improvement. The technical solution of the present invention is:

[0033] like Figures 1 to 8 As shown, the embodiment of the present invention provides a nonene recovery tower for tertiary carbonic acid production, comprising a tower body 1 and a plurality of condensing tubes 2 inside, the lower end of the tower body 1 is connected to a discharge pipe 15 for discharging liquid nonene, the lower ends of the plurality of condensing tubes 2 are connected to a lower centralizing shell 3, the lower end surface of the lower centralizing shell 3 is funnel-shaped, and the lower end surface of the lower centralizing shell 3 is provided with an outlet pipe, an air intake pipe 5 is inserted into one side of the lower centralizing shell 3, the middle section of the air intake pipe 5 is connected to an air intake shell 6, a transition chamber 7 and a boost chamber 9 are provided inside the air intake shell 6, and the inner side of the transition chamber 7 is slidably connected to the inner side of the transition chamber 7. There is a piston 8, a boosting mechanism is arranged inside the boosting chamber 9, and the boosting chamber 9 is connected with the transition chamber 7 through a reversing mechanism; the boosting mechanism includes a boosting motor 101 installed on the outside of the air intake shell 6 and a piston 2 105 slidably connected to the inside of the boosting chamber 9, a rotating shaft 102 is fixed to the driving end of the boosting motor 101, a rotating arm 103 is fixed to the middle position of the rotating shaft 102, and one end of the rotating arm 103 is movably connected to the piston 2 105 through a connecting rod 104; a heat dissipation mechanism is arranged at the upper end of the tower body 1; a pressure relief mechanism is arranged at the upper ends of multiple condensing tubes 2.

[0034] Furthermore, the reversing mechanism includes a rotating block 106 rotatably connected to the inside of the air intake shell 6 at a position below the supercharging chamber 9, a supercharging air pipe 110 connecting the supercharging chamber 9 and the air intake pipe 5, a first flow channel 107 and a second flow channel 108 vertically connected are opened inside the rotating block 106, and a one-way valve 109 is arranged inside the second flow channel 108 and the supercharging air pipe 110, the conduction direction of the one-way valve 109 located inside the second flow channel 108 points to the first flow channel 107, and the conduction direction of the one-way valve 109 located inside the supercharging air pipe 110 points to the air intake pipe 5, and a reversing drive is arranged between the rotating block 106 and the air intake shell 6. Mechanism; The reversing drive mechanism includes a gear shaft 116 fixed to one end of the rotating block 106 and extending to the outside of the air intake shell 6, a baffle 113 fixed to the outside of the air intake shell 6, and a rack 112 movably arranged on the outside of the air intake shell 6, a gear 117 meshing with the rack 112 is fixed to the outside of the gear shaft 116, a rack spring 115 is elastically connected between one end of the rack 112 and the baffle 113, a through groove 118 is opened inside the rack 112, a guide block 119 slidably connected to the inner side of the through groove 118 is fixed to the outside of the air intake shell 6, and an electromagnet 114 that can attract the rack 112 is installed on one side of the baffle 113;

[0035] Through the reversing mechanism, the path of the gaseous nonene flowing into the condenser 2 can be automatically adjusted according to the input amount of the gaseous nonene. When the input amount is low, the gaseous nonene is made to flow directly into the inner side of the condenser 2. When the input amount of the gaseous nonene is too large, the gaseous nonene is made to flow into the inner side of the condenser 2 through the boosting chamber 9. The boosting mechanism can pressurize the gaseous nonene and increase the liquefaction temperature of the gaseous nonene, thereby accelerating the condensation and liquefaction speed of the gaseous nonene and improving the recovery efficiency of the nonene.

[0036] Furthermore, two magnetic switches 111 arranged vertically are installed on the outer side of the air intake shell 6 near the transition chamber 7, and both magnetic switches 111 are electrically connected to the boost motor 101 and the electromagnet 114 through the control circuit;

[0037] When the amount of gaseous nonene input is small, the air pressure inside the transition chamber 7 is low. At this time, the piston 8 is located at the lower end of the transition chamber 7, and a magnetic switch 111 at the bottom detects the piston 8. When the amount of gaseous nonene input is large, the pressure inside the transition chamber 7 increases, pushing the piston 8 up, and a magnetic switch 111 at the top can detect the piston 8, so that a start signal can be sent to the boosting motor 101 of the boosting mechanism and the electromagnet 114 of the reversing drive mechanism through the control circuit to realize the boosting of the gaseous nonene.

[0038] Furthermore, a heat insulating material is provided on the outer side of the air intake shell 6;

[0039] The heat insulation material can significantly reduce the heat conduction from the inside of the air intake shell 6 to the outside, thereby preventing the gaseous nonene from liquefying inside the transition chamber 7 and the boost chamber 9, thereby improving the operating stability of the device.

[0040] Furthermore, the heat dissipation mechanism includes an air inlet pipe 10 fixed to the upper end of the tower body 1, and a plurality of air outlet slots 14 provided on the outer side of the tower body 1 at the position corresponding to each condenser tube 2. A ventilation motor 11 is installed on the inner side of the air inlet pipe 10, and a rotating shell 12 is fixed to the driving end of the ventilation motor 11. A plurality of fan blades 13 arranged in a circumference are fixed to the outer side of the rotating shell 12, and a plurality of water spray holes 204 are provided at the lower end of the outer side of the rotating shell 12. Two centrifugal rods 202 are symmetrically rotatably connected to the inner upper end of the rotating shell 12, and a counterweight roller shaft 203 is provided at one end of the two centrifugal rods 202. A water pressure plate 201 is slidably connected to the inner lower end of the rotating shell 12, and the lower end of the water pressure plate 201 is elastically connected to the inner lower end of the rotating shell 12 through a pressure plate spring 206. A filling pipe 205 for adding water to the inner side of the rotating shell 12 is provided at the center position of the lower end of the rotating shell 12;

[0041] Through the heat dissipation mechanism, multiple condenser tubes 2 can be cooled and cooled, increasing the temperature difference between the inside and outside of the condenser tubes 2, thereby accelerating the speed at which the condenser tubes 2 dissipate the heat of the gaseous nonene to the outside, thereby further increasing the condensation speed of the gaseous nonene and improving the recovery efficiency of the nonene.

[0042] Further, the pressure relief mechanism includes an upper concentrated shell 4 connected to the upper ends of the plurality of condensing tubes 2, one side of the upper concentrated shell 4 is connected to a pressure relief pipe 301 extending to the outside of the tower body 1, one end of the pressure relief pipe 301 is connected to a cylindrical shell 302, a valve column 303 is slidably connected to the inner side of the cylindrical shell 302, one end of the valve column 303 is elastically connected to the inner end of the cylindrical shell 302 through a valve core spring 305, the other end of the inner side of the cylindrical shell 302 close to the valve column 303 is connected to the pressure relief pipe 301 through a branch pipe 306, one side of the cylindrical shell 302 is connected to an exhaust pipe 307, and one end of the valve column 303 is provided with a conducting flow channel 304 that can be connected to the pressure relief pipe 301 and the exhaust pipe 307;

[0043] Through the pressure relief mechanism, when the air pressure inside the multiple condensers 2 is too high, the excess gaseous nonene can be discharged to the outside, thereby reducing the pressure inside the condensers 2, maintaining the air pressure inside the condensers 2 within a safe range, preventing the condensers 2 from bursting, and improving the safety of the device when in use.

[0044] Working principle: When in use, the nonene evaporated in the reaction device for producing tert-butyl carbonate is introduced into the intake pipe 5. When the reaction device runs at a low speed, less evaporated gaseous nonene is generated. At this time, there is less gaseous nonene in the transition chamber 7 and the inner side of the intake pipe 5, so the pressure is low. The piston 8 is located at the lower end of the inner side of the transition chamber 7. At this time, a magnetic switch 111 below detects the position of the piston 8. At this time, the rotating block 106 does not rotate, and the first flow channel 107 is at a horizontal angle. Figure 5 In the state shown, the air inlet pipe 5 and the transition chamber 7 are connected through the first flow channel 107, and the gaseous nonene enters the inner side of the lower concentrated shell 3 through the transition chamber 7, the first flow channel 107, and the air inlet pipe 5, and then flows evenly into the inner side of the multiple condensing tubes 2. Since the boiling point of nonene is 144-155 degrees Celsius, the gaseous nonene can be liquefied into liquid nonene at room temperature. The gaseous nonene releases heat on the inner side of the multiple condensing tubes 2 and gradually liquefies into liquid nonene. The liquid nonene flows along the inner wall of the condensing tube 2 to the inner side of the lower concentrated shell 3. Since the lower end face of the lower concentrated shell 3 is funnel-shaped and the lower end face of the lower concentrated shell 3 is provided with an outlet pipe, the liquid nonene flowing to the inner side of the lower concentrated shell 3 will gather at the outlet pipe and flow to the inner bottom end of the tower body 1 through the outlet pipe, so that the evaporated gaseous nonene can be recovered, and the liquid nonene at the inner bottom end of the tower body 1 can be discharged through the discharge pipe 15;

[0045] When the reaction inside the tert-butyl carbonate reaction device is accelerated, more gaseous nonene will be produced. A large amount of gaseous nonene will enter the inner side of the intake pipe 5 and the transition chamber 7, which will cause the air pressure inside the intake pipe 5 and the transition chamber 7 to increase. The high-pressure nonene gas pushes the piston 8 to move upward. When the piston 8 moves up to a magnetic switch 111 close to the upper side, the magnetic switch 111 will detect the piston 8 and control the boost motor 101 of the boost mechanism to run through the control circuit, and at the same time control the electromagnet 114 of the reversing drive mechanism to energize the rack 11 2 generates electromagnetic suction force, attracting the rack 112 to move toward the end where the electromagnet 114 is located. Under the guidance of the guide block 119 and the through groove 118, the rack 112 keeps moving horizontally and linearly, and approaches one end of the baffle 113 and compresses the rack spring 115. At the same time, the rack 112 drives the gear 117 to rotate 90° through the teeth, and the gear 117 drives the rotating block 106 to rotate 90° through the gear shaft 116. The rotating block 106 drives the first flow channel 107 and the second flow channel 108 inside to rotate 90°. Figure 4 In the state shown, the air intake pipe 5 and the transition chamber 7 are connected through the second flow channel 108, the first flow channel 107, the supercharging chamber 9, and the supercharging air pipe 110;

[0046] When the boosting motor 101 of the boosting mechanism is in operation, it drives the rotating shaft 102 to rotate, and the rotating shaft 102 drives the rotating arm 103 to rotate, and the rotating arm 103 drives the piston 105 to move up and down through the connecting rod 104. Since the conduction direction of the one-way valve 109 located on the inner side of the second flow channel 108 points to the first flow channel 107, and the conduction direction of the one-way valve 109 located on the inner side of the boosting air pipe 110 points to the intake pipe 5, when the piston 105 moves up, the gaseous nonene flowing into the inner side of the transition chamber 7 can be sucked into the inner side of the boosting chamber 9 through the second flow channel 108 and the first flow channel 107. When the piston 105 moves down, the gaseous nonene flowing into the transition chamber 7 can be sucked into the inner side of the boosting chamber 9 through the second flow channel 108 and the first flow channel 107. The inhaled gaseous nonene is pressed into the inner side of the intake pipe 5 through the boosting air pipe 110, and flows to the inner side of the lower concentrated shell 3 through the intake pipe 5, and then flows evenly from the lower concentrated shell 3 to the inner side of the multiple condensing tubes 2. Through the continuous operation of the boosting mechanism, the gaseous nonene produced by the tert-carbonic acid reaction device is pressed into the inner side of the multiple condensing tubes 2, thereby increasing the pressure of the gaseous nonene inside the condensing tubes 2. The increase in pressure can increase the boiling point of nonene, thereby increasing the liquefaction point of gaseous nonene. Therefore, when the input amount of gaseous nonene is too large, the gaseous nonene can also be quickly condensed, thereby greatly improving the recovery efficiency of gaseous nonene.

[0047] After absorbing the heat of gaseous nonene, the multiple condensing tubes 2 will dissipate the heat into the air inside the tower body 1, causing the temperature of the air inside the tower body 1 to rise. In order to ensure the condensation efficiency, the ventilation motor 11 that controls the heat dissipation mechanism drives the rotating shell 12 and the multiple fan blades 13 to rotate at high speed. The rotation of the multiple fan blades 13 can blow the external cold air into the inside of the tower body 1 through the air inlet pipe 10. When the cold air flows near the multiple condensing tubes 2, the hot air near the condensing tubes 2 can be discharged to the outside through the multiple air outlet slots 14, thereby greatly reducing the temperature of the outside of the condensing tubes 2, thereby improving the condensation effect of the condensing tubes 2, ensuring the condensation efficiency of the gaseous nonene inside, thereby improving the recovery efficiency of the nonene. When the rotating shell 12 rotates, it will also drive the two centrifugal rods inside 202 and the counterweight roller 203 rotate accordingly. Under the action of centrifugal force, the counterweight roller 203 is pushed toward the inner wall of the rotating shell 12, and the counterweight roller 203 drives the centrifugal rod 202 to rotate toward the lower end of the rotating shell 12. The two centrifugal rods 202 rotate downward synchronously, thereby pushing the water pressure plate 201 to move downward. The water pressure plate 201 moves downward to spray the water added at the lower end of the inner side of the rotating shell 12 to the inner side of the air inlet pipe 10 through multiple water spray holes 204. The sprayed water forms a large number of small water droplets. The small water droplets are mixed with the air blown in, which can greatly reduce the temperature of the air. At the same time, the small water droplets can absorb more heat, thereby improving the heat dissipation effect of the multiple condensation tubes 2, further improving the condensation speed of the gaseous nonene, and improving the recovery efficiency.

[0048] In order to improve the operating stability of the device, when the air pressure inside the condenser 2 is too high, the high-pressure nonene gas inside the condenser 2 flows into the inner side of the pressure relief pipe 301 through the upper concentrating shell 4 of the pressure relief mechanism, and then flows into the inner end of the cylindrical shell 302 through the branch pipe 306. The high-pressure nonene gas can push the valve column 303 to move in the direction of the valve core spring 305 and compress the valve core spring 305. When the conducting channel 304 inside the valve column 303 is aligned with the pressure relief pipe 301 and the exhaust pipe 307, the pressure relief pipe 301 and the exhaust pipe 307 can be connected. At this time, the high-pressure nonene gas gathered in multiple condensers 2 can be discharged to the outside through the pressure relief pipe 301, the conducting channel 304 and the exhaust pipe 307, thereby reducing the air pressure inside the multiple condensers 2, maintaining the air pressure inside the condenser 2 within a safe range, preventing the condenser 2 from bursting, and improving the safety of the device during use.

[0049] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A nonene recovery tower for tert-butyl carbonate production, comprising a tower body and a plurality of condensing pipes inside, characterized in that: The lower ends of the multiple condensing tubes are connected to a lower concentrated shell, an air intake pipe is inserted into one side of the lower concentrated shell, the middle section of the air intake pipe is connected to the air intake shell, a transition chamber and a boost chamber are provided inside the air intake shell, a piston is slidably connected to the inner side of the transition chamber, a boost mechanism is provided inside the boost chamber, and the boost chamber is connected to the transition chamber through a reversing mechanism; The supercharging mechanism includes a supercharging motor installed on the outside of the air intake housing and a second piston slidably connected to the inside of the supercharging chamber. A rotating shaft is fixed to the driving end of the supercharging motor, a rotating arm is fixed to the middle of the rotating shaft, and one end of the rotating arm is movably connected to the second piston through a connecting rod. A heat dissipation mechanism is provided at the upper end of the tower body; A pressure relief mechanism is provided at the upper ends of the plurality of condensing tubes; The reversing mechanism comprises a rotating block rotatably connected to the inside of the air intake housing at a position below the supercharging chamber, a supercharging air pipe connecting the supercharging chamber and the air intake pipe, a first flow channel and a second flow channel vertically connected are opened inside the rotating block, a check valve is arranged inside the second flow channel and the supercharging air pipe, the conduction direction of the check valve located inside the second flow channel points to the first flow channel, and the conduction direction of the check valve located inside the supercharging air pipe points to the air intake pipe, and a reversing driving mechanism is arranged between the rotating block and the air intake housing; The reversing drive mechanism includes a gear shaft fixed to one end of the rotating block and extending to the outside of the air intake shell, a baffle fixed to the outside of the air intake shell, and a rack movably arranged on the outside of the air intake shell. A gear meshing with the rack is fixed to the outside of the gear shaft, a rack spring is elastically connected between one end of the rack and the baffle, and an electromagnet that can attract the rack is installed on one side of the baffle; Two magnetic switches arranged up and down are installed on the outer side of the air intake shell near the transition chamber. Both magnetic switches are electrically connected to the boost motor and the electromagnet through the control circuit.

2. The nonene recovery tower for tert-butyl carbonate production according to claim 1, characterized in that: A through groove is provided inside the rack, and a guide block which is slidably connected with the inner side of the through groove is fixed on the outer side of the air intake shell.

3. The nonene recovery tower for tert-butyl carbonate production according to claim 1, characterized in that: The outer side of the air intake shell is provided with heat insulation material.

4. The nonene recovery tower for tert-butyl carbonate production according to claim 1, characterized in that: The lower end surface of the lower concentrating shell is funnel-shaped, and the lower end surface of the lower concentrating shell is provided with an outlet pipe.

5. The nonene recovery tower for tert-butyl carbonate production according to claim 1, characterized in that: The heat dissipation mechanism includes an air inlet pipe fixed at the upper end of the tower body, and a plurality of air outlet slots opened on the outer side of the tower body corresponding to the position of each condenser tube. A ventilation motor is installed on the inner side of the air inlet pipe, and a rotating shell is fixed to the driving end of the ventilation motor. A plurality of fan blades arranged in a circle are fixed to the outer side of the rotating shell, and a plurality of water spray holes are opened at the lower end of the outer side of the rotating shell. Two centrifugal rods are symmetrically rotatably connected to the inner upper end of the rotating shell, and a counterweight roller is provided at one end of the two centrifugal rods. A water pressure plate is slidably connected to the inner lower end of the rotating shell, and the lower end of the water pressure plate is elastically connected to the inner lower end of the rotating shell through a pressure plate spring. A filling pipe for adding water to the inner side of the rotating shell is provided at the center position of the lower end of the rotating shell.

6. The nonene recovery tower for tert-butyl carbonate production according to claim 1, characterized in that: The pressure relief mechanism includes an upper concentrated shell connected to the upper ends of multiple condensing tubes, one side of the upper concentrated shell is connected to a pressure relief pipe extending to the outside of the tower body, one end of the pressure relief pipe is connected to a cylindrical shell, the inner side of the cylindrical shell is slidably connected to a valve column, one end of the valve column is elastically connected to the inner end of the cylindrical shell through a valve core spring, the other end of the inner side of the cylindrical shell close to the valve column is connected to the pressure relief pipe through a branch pipe, one side of the cylindrical shell is connected to an exhaust pipe, and an inner end of the valve column is provided with a conducting flow channel that can be connected to the pressure relief pipe and the exhaust pipe.

7. The nonene recovery tower for tert-butyl carbonate production according to claim 1, characterized in that: The lower end of the tower body is connected with a discharge pipe for discharging liquid nonene.

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