Energy recovery type reaction kettle for preparing p-hydroxybenzoic acid

Abstract

The invention discloses an energy recovery type reaction kettle for preparation of p-hydroxybenzoic acid, which is applied to the technical field of preparation of p-hydroxybenzoic acid, the energy recovery type reaction kettle comprises a shell mechanism, the shell mechanism comprises a sleeve shell and an inner shell, the sleeve shell is connected to the surface of the inner shell in a sleeving manner, and when the energy recovery type reaction kettle for preparation of p-hydroxybenzoic acid is used, the inner shell is sleeved with the sleeve shell; and the stirring effect of p-hydroxybenzoic acid in the inner shell is realized through the operation of the rotating motor. After the stirring reaction, the pressure in the inner shell drives the blades to rotate. And the driving paddle drives the stirring rod to rotate. At the moment, the movement trend of the stirring rod is opposite to the driving trend of the rotating motor. By means of the arrangement, energy-saving stirring can be achieved during long exhaust in the inner shell, and the p-hydroxybenzoic acid is prevented from precipitating while energy is saved. Through the arrangement, the production cost of a workshop can be saved, and exhaust energy can be recycled.

Description

Technical Field

[0001] The invention belongs to the technical field of p-hydroxybenzoic acid preparation, and particularly relates to an energy recovery reactor for preparing p-hydroxybenzoic acid. Background Art

[0002] Para-hydroxybenzoic acid (PHBA) is an important raw material for organic synthesis. Due to its unique hydroxyl and carboxyl functional groups, it has become one of the most widely used materials in organic chemical raw materials. It is widely used in the fields of medicine, pesticides, food, electronic communications, polymer materials industry, etc. In recent years, the demand for PHBA in the domestic and foreign markets has been huge. my country has started to develop and produce PHBA since the early 1980s, and its production capacity has increased year by year. However, compared with foreign technology, my country's PHBA production process is relatively backward, with complex operation, low yield, high energy consumption and large wastewater production. In addition, with the continuous development of society, the demand for high-purity, low-color and high-stability PHBA in related downstream industries is increasing.

[0003] In the production of para-hydroxybenzoic acid, a reactor is needed to carry out chemical reactions. The broad understanding of the reactor is a container for physical or chemical reactions. Through the structural design and parameter configuration of the container, the heating, evaporation, cooling and low-speed mixing functions required by the process can be achieved. The classification and selection of materials of the reactor can be divided into carbon steel reactors, stainless steel reactors and glass-lined reactors (enamel reactors), which are widely used in various production users and various scientific research experimental projects. The working principle of the reactor is to drive the stirring shaft by a motor to stir the reactants to make them fully react to obtain the required substances. At present, in the use of the reactor, the gas cannot be quickly recovered and utilized due to direct discharge during exhaust, which will easily cause energy waste. Summary of the invention

[0004] The object of the present invention is to provide an energy recovery reactor for preparing p-hydroxybenzoic acid, which has the advantage that energy-saving stirring can be achieved during the long exhaust inside the inner shell through the arrangement, and precipitation of p-hydroxybenzoic acid can be prevented while saving energy. The arrangement is conducive to saving production costs of the workshop, and the energy of the exhaust gas can be reused. The arrangement changes the transmission mode of the liquid in the water storage tank in the transmission component, which can save the operating cost and consumption of the water pump, and further improve the energy recovery effect of the recovery reactor.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: an energy recovery reactor for preparing p-hydroxybenzoic acid, comprising an outer shell mechanism, the outer shell mechanism comprising an outer shell and an inner shell, the outer shell being sleeved on the surface of the inner shell, the top flange of the inner shell being connected to a cover body, a one-way transmission mechanism is provided inside the outer shell mechanism, the one-way transmission mechanism comprises a transmission assembly and a drive assembly, the transmission assembly comprises a rotating motor, the drive assembly comprises a driving blade, a circulation mechanism is provided on the outer side of the inner shell, the circulation mechanism comprises a reciprocating assembly and a transmission assembly, the reciprocating assembly comprises a rotating rod, and the transmission assembly comprises a water tank and a water pump.

[0006] By adopting the above technical scheme, when the energy recovery reactor for the preparation of p-hydroxybenzoic acid is used, the material is put into the inner shell through the pipeline one, and the stirring effect of the p-hydroxybenzoic acid in the inner shell will be realized through the operation of the transmission component. After stirring and reacting, when the pressure inside the inner shell needs to be discharged, the electromagnetic valve will be opened, and the pressure will enable the drive component to operate and cause the stirring rod to rotate again, but the movement trend of the stirring rod is opposite to the trend driven by the rotating motor, and the stirring rod will stir the p-hydroxybenzoic acid inside the inner shell again. Through this setting, energy-saving stirring can be realized in the long exhaust inside the inner shell, and p-hydroxybenzoic acid can be prevented from precipitating while saving energy. Through this setting, it is beneficial to save the production cost of the workshop, and the energy of the exhaust can be reused. In addition, in the use of the energy recovery reactor for the preparation of p-hydroxybenzoic acid, the diaphragm can be driven to move through the setting of the reciprocating component to realize the pressure change in the regulating shell. This changes the transfer mode of the liquid in the water storage tank in the transfer component, can save the operating cost and consumption of the water pump, and further improve the energy recovery effect of the recovery reactor.

[0007] The present invention is further configured as follows: a stirring rod penetrating the cover body to the inside of the inner shell is rotatably connected to the inner side of the cover body, stirring plates are fixedly installed on both sides of the stirring rod, a circulation pipe sleeved on the surface of the inner shell is provided on the inner side of the sleeve shell, a pressure pipe penetrating to the inside of the inner shell is fixedly installed on the top of the cover body, a pressure gauge is installed on the pressure pipe, and a pipe 1 and a pipe 2 connected to the inner shell are respectively fixedly installed on one side of the sleeve shell, and valves are installed on the pipe 1 and the pipe 2.

[0008] By adopting the above technical scheme, the rotation of the stirring rod will drive the stirring plate to rotate, and the circulation pipe cooperates with the material inside the inner shell to change the temperature to realize the reaction, the pressure pipe cooperates with the external equipment to change the pressure inside the inner shell, the pressure gauge cooperates with the pressure to check and monitor, pipeline one cooperates with the inner shell to input materials, pipeline two cooperates with the inner shell to discharge the materials after the reaction, and the valve cooperates with pipeline one and pipeline two for control use.

[0009] The present invention is further configured as follows: the rotating motor and the cover body are fixedly mounted to each other, the output end of the rotating motor is fixedly sleeved with a main rod that penetrates into the cover body through a coupling, an outer ring 1 is fixedly mounted on the bottom of the main rod, an inner ring 1 is engaged with the inner side of the outer ring 1, and the bottom of the inner ring 1 and the stirring rod are fixedly mounted to each other.

[0010] By adopting the above technical solution, the operation of the rotating motor will drive the main rod to rotate, and the main rod will drive the outer ring 1 to rotate synchronously, wherein the main rod is reversed. At this time, the outer ring 1 and the inner ring 1 do not affect each other. In the mutual engagement of the outer ring 1 and the inner ring 1, the outer ring 1 and the inner ring 1 will realize synchronous forward rotation, and the inner ring 1 will synchronously drive the stirring rod to rotate.

[0011] The present invention is further configured as follows: a gear one is fixedly sleeved on the surface of the stirring rod, a gear two is meshed on the surface of the gear one, a rod body one is fixedly sleeved on the inner side of the gear two, an inner ring two located at the top of the gear two is fixedly sleeved on the surface of the rod body one, an outer ring two is meshed on the surface of the inner ring two, and a meshing gear is fixedly sleeved on the surface of the outer ring two.

[0012] By adopting the above technical solution, the rotation of the meshing gear will drive the outer ring two to rotate. At this time, the rotation of the outer ring two is positive rotation, and the outer ring two will drive the inner ring two to rotate through the engagement of the ratchet teeth. During the synchronous rotation of the outer ring two and the inner ring two, the synchronous rotation of the rod body one and the gear two will be realized.

[0013] The present invention is further configured as follows: a cover shell fixedly connected to the inner side of the cover body is provided on the outer side of the driving blade; a rod body 2 penetrating to the top of the cover shell is fixedly installed on the top of the driving blade; the rod body 2 and the cover shell are rotatably connected to each other through a bearing; a gear 3 is fixedly sleeved on the top of the rod body 2, and the gear 3 is meshed with the meshing gear.

[0014] By adopting the above technical solution, the rotation of the driving blade will drive the rod body 2 to rotate, and the rotation of the rod body 2 will drive the gear 3 to rotate, and the gear 3 will achieve synchronous rotation with the meshing gear through meshing.

[0015] The present invention is further configured as follows: the bottom of the cover body is connected to a ventilation pipe, a solenoid valve located inside the cover shell is installed on the ventilation pipe, both ends of the ventilation pipe are connected to opening one, the top of the cover shell is connected to a discharge pipe that runs through the top of the cover body, and the bottom of the discharge pipe is connected to opening two located on the inner side of the cover shell.

[0016] By adopting the above technical solution, the pressure inside the inner shell will enter the vent pipe through opening one, and then blow toward the driving blade through opening one again, and then enter the discharge pipe through opening two, and finally leave the reactor, wherein the solenoid valve is used in conjunction with the vent pipe for control.

[0017] The present invention is further configured as follows: the rotating rod and the cover body are rotatably connected to each other via a bearing, an inner ring three is fixedly sleeved on the surface of the rotating rod, an outer ring three is engaged on the surface of the inner ring three, a gear four meshing with a gear one is fixedly sleeved on the surface of the outer ring three, a disc is fixedly installed on the bottom of the rotating rod, a guide ring is provided at the bottom of the guide ring, and a guide block fixedly connected to the disc is slidably sleeved on the inner side of the guide ring.

[0018] By adopting the above technical solution, the rotation of gear one will drive gear four to rotate, gear four will drive outer ring three to rotate, and the positive rotation of outer ring three will drive inner ring three and rotating rod to rotate synchronously, wherein the rotating rod drives the disc to rotate, and the disc will drive the guide block to realize the movement trend around the rotating rod as the center of the circle, thereby realizing the lateral movement of the guide ring, and the movement trend is reciprocating movement.

[0019] The present invention is further configured as follows: a connecting plate is fixedly installed on one side of the guide ring, one end of the connecting plate is provided with an adjusting shell fixedly connected to the inner side of the cover body, and the inner side of the adjusting shell is slidably connected with a diaphragm fixedly connected to one end of the connecting plate.

[0020] By adopting the above technical solution, the movement of the guide ring will drive the connecting plate to rotate, and the connecting plate will drive the diaphragm to move in the regulating shell, so as to change the pressure in the regulating shell.

[0021] The present invention is further configured as follows: the water tank and the water pump are both located on one side of the casing, a semiconductor refrigeration sheet is embedded in the bottom of the water tank, a radiator is pasted on the bottom of the semiconductor refrigeration sheet, one end of the circulation pipe passes through the top of the casing to the inner side of the cover body and is connected with the regulating shell, the other end of the circulation pipe passes through the surface of the casing and is connected with a three-way pipe, one end of the three-way pipe is connected with the water outlet of the water pump, the other end of the three-way pipe is connected with connecting pipe 1 connected with the water tank, the water inlet of the water pump is connected with connecting pipe 2 connected with the water tank, the top of the water tank is connected with a water pipe that passes through the inner side of the cover body and is connected with the regulating shell, and one end of the water pipe and the circulation pipe are both equipped with a one-way valve.

[0022] By adopting the above technical solution, the semiconductor cooling plate and the radiator are used in combination, and the temperature of the liquid inside the water tank changes. When the water pump is running, the water in the water tank will pass through the connecting pipe 2 to the three-way pipe, and then enter the circulation pipe, and then pass through the regulating shell to the water pipe, forming a circulation effect, in which the pressure inside the regulating shell is in a stable state. In addition, when the water pump is stopped, the water inside the water tank will pass through the connecting pipe 1 to the circulation pipe, and then the pressure change in the regulating shell will realize the circulation effect of the water in the circulation pipe, in which the one-way valve ensures the use effect of the water pipe and the circulation pipe.

[0023] In summary, the present invention has the following beneficial effects: When using an energy recovery reactor for the preparation of p-hydroxybenzoic acid, the p-hydroxybenzoic acid in the inner shell will be stirred by the operation of the rotating motor. After the stirring reaction, the pressure inside the inner shell will cause the driving blades to rotate. The driving blades will drive the stirring rod to rotate. At this time, the movement trend of the stirring rod is opposite to the trend driven by the rotating motor. This setting can achieve energy-saving stirring during the long exhaust inside the inner shell, while saving energy and preventing the precipitation of p-hydroxybenzoic acid. This setting is conducive to saving the production cost of the workshop and can reuse the exhaust energy; In the use of the energy recovery reactor for the preparation of p-hydroxybenzoic acid, the pressure in the regulating shell will be changed by the gear 1 under the positive rotation transmission of the driven blade. When the water pump is stopped, the water inside the water storage tank will enter the circulation pipe through the connecting pipe 1 under the action of the diaphragm, and then the circulation effect of the water in the circulation pipe will be achieved by the pressure change in the regulating shell. The one-way valve ensures the use effect of the water pipe and the circulation pipe, thereby changing the transfer mode of the liquid in the water storage tank, saving the operating cost and consumption of the water pump, and further improving the energy recovery effect of the recovery reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a cross-sectional schematic diagram of the present invention; Figure 3 It is an enlarged schematic diagram of the one-way transmission mechanism and the reciprocating assembly of the present invention; Figure 4 It is an exploded and enlarged schematic diagram of the one-way transmission mechanism and the reciprocating assembly of the present invention; Figure 5 is an enlarged schematic cross-sectional view of the regulating shell of the present invention; Figure 6 is an enlarged schematic top view of the outer ring 1 and the inner ring 1 of the present invention; Figure 7 It is an enlarged schematic diagram of the circulation mechanism of the present invention; Figure 8 It is an exploded and enlarged schematic diagram of the reciprocating assembly of the present invention; Fig. 9 It is an enlarged schematic cross-sectional view of a water storage tank of the present invention.

[0025] Reference numerals: 1. Shell mechanism; 101. Shell; 102. Inner shell; 103. Cover; 104. Stirring rod; 105. Stirring plate; 106. Circulation pipe; 107. Pressure pipe; 108. Pressure gauge; 109. Pipeline 1; 1010. Pipeline 2; 1011. Valve; 2. One-way transmission mechanism; 201. Transmission assembly; 2011. Rotating motor; 2012. Main rod; 2013. Outer ring 1; 2014. Inner ring 1; 2015. Gear 1; 2016. Gear 2; 2017. Outer ring 2; 2018. Inner ring 2; 2019. Rod body 1; 20110. Meshing gear; 202, driving assembly; 2021, driving blade; 2022, rod body 2; 2023, gear 3; 2024, ventilation pipe; 2025, solenoid valve; 2026, opening 1; 2027, cover; 2028, discharge pipe; 2029, opening 2; 3. Circulation mechanism; 301. Reciprocating assembly; 3011. Rotating rod; 3012. Gear 4; 3013. Disc; 3014. Guide ring; 3015. Guide block; 3016. Connecting plate; 3017. Diaphragm; 3018. Adjusting shell; 3019. Inner ring 3; 30110. Outer ring 3; 302, transmission component; 3021, water tank; 3022, semiconductor cooling plate; 3023, radiator; 3024, water pump; 3025, three-way pipe; 3026, connecting pipe one; 3027, connecting pipe two; 3028, water pipe; 3029, one-way valve. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] Embodiment 1: refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6, an energy recovery reactor for preparing p-hydroxybenzoic acid, comprising a shell mechanism 1, the shell mechanism 1 comprising a casing 101 and an inner shell 102, the casing 101 being sleeved on the surface of the inner shell 102, the top flange of the inner shell 102 being connected with a cover 103, a one-way transmission mechanism 2 being arranged inside the shell mechanism 1, the one-way transmission mechanism 2 comprising a transmission assembly 201 and a drive assembly 202, the transmission assembly 201 comprising a rotary motor 2011, the drive assembly 202 comprising a drive blade 2021, when the energy recovery reactor for preparing p-hydroxybenzoic acid is used, the operation of the rotary motor 2011 will achieve a stirring effect on the p-hydroxybenzoic acid in the inner shell 102. After the stirring reaction, the pressure inside the inner shell 102 will cause the drive blade 2021 to rotate. The drive blade 2021 will drive the stirring rod 104 to rotate. At this time, the movement trend of the stirring rod 104 is opposite to the trend driven by the rotary motor 2011. This arrangement can realize energy-saving stirring in the long exhaust gas inside the inner shell 102, thereby saving energy and preventing the precipitation of p-hydroxybenzoic acid. This arrangement is conducive to saving the production cost of the workshop and can reuse the energy of the exhaust gas.

[0028] refer to Figure 1 , Figure 2 The inner side of the cover 103 is rotatably connected with a stirring rod 104 that penetrates the cover 103 to the inside of the inner shell 102, and stirring plates 105 are fixedly installed on both sides of the stirring rod 104. The inner side of the casing 101 is provided with a circulation pipe 106 that is sleeved on the surface of the inner shell 102. A pressure pipe 107 that penetrates the inner side of the inner shell 102 is fixedly installed on the top of the cover 103, and a pressure gauge 108 is installed on the pressure pipe 107. One side of the casing 101 is respectively fixedly installed with a pipe 109 and a pipe 2 1010 that are connected to the inner shell 102. Pipe 1 109 and pipe 2 1010 are fixedly installed A valve 1011 is installed on each of them. The rotation of the stirring rod 104 will drive the stirring plate 105 to rotate, and the circulation pipe 106 cooperates with the material inside the inner shell 102 to change the temperature to achieve the reaction. The pressure pipe 107 cooperates with external equipment to change the pressure inside the inner shell 102. The pressure gauge 108 cooperates with the pressure to check and monitor. Pipeline 1 109 cooperates with the inner shell 102 to input materials, and pipeline 2 1010 cooperates with the inner shell 102 to discharge the materials after the reaction. The valve 1011 cooperates with pipeline 1 109 and pipeline 2 1010 for control and use.

[0029] refer to Figure 2 , Figure 3 , Figure 4The rotating motor 2011 and the cover body 103 are fixedly installed with each other, and the output end of the rotating motor 2011 is fixedly sleeved with a main rod 2012 that penetrates into the inside of the cover body 103 through a coupling, and an outer ring 2013 is fixedly installed at the bottom of the main rod 2012, and an inner ring 2014 is engaged with the inner side of the outer ring 2013, and the bottom of the inner ring 2014 and the stirring rod 104 are fixedly installed with each other. The operation of the rotating motor 2011 will drive the main rod 2012 to rotate, and the main rod 2012 will drive the outer ring 2013 to rotate synchronously, wherein the main rod 2012 is reversed, and at this time, the outer ring 2013 and the inner ring 2014 do not affect each other, and in the mutual engagement of the outer ring 2013 and the inner ring 2014, the outer ring 2013 and the inner ring 2014 will realize synchronous forward rotation, and the inner ring 2014 synchronously drives the stirring rod 104 to rotate.

[0030] refer to Figure 2 , Figure 3 , Figure 4 The surface of the stirring rod 104 is fixedly sleeved with a gear 1 2015, the surface of the gear 1 2015 is meshed with a gear 2016, the inner side of the gear 2 2016 is fixedly sleeved with a rod body 1 2019, the surface of the rod body 1 2019 is fixedly sleeved with an inner ring 2018 located at the top of the gear 2 2016, the surface of the inner ring 2018 is meshed with an outer ring 2017, the surface of the outer ring 2017 is fixedly sleeved with a meshing gear 20110, the rotation of the meshing gear 20110 will drive the outer ring 2017 to rotate, at this time, the rotation of the outer ring 2017 is positive, the outer ring 2017 will drive the inner ring 2018 to rotate through the engagement of the ratchet teeth, and in the synchronous rotation of the outer ring 2 2017 and the inner ring 2 2018, the synchronous rotation of the rod body 1 2019 and the gear 2 2016 will be realized.

[0031] refer to Figure 2 , Figure 4 , Figure 5 The outer side of the driving blade 2021 is provided with a cover shell 2027 fixedly connected to the inner side of the cover body 103, and the top of the driving blade 2021 is fixedly installed with a rod body 2022 that penetrates to the top of the cover shell 2027. The rod body 2022 and the cover shell 2027 are rotatably connected to each other through a bearing, and the top of the rod body 2022 is fixedly sleeved with a gear 3 2023, and the gear 3 2023 is meshed with the meshing gear 20110. The rotation of the driving blade 2021 will drive the rod body 2022 to rotate, and the rotation of the rod body 2022 will drive the gear 3 2023 to rotate, and the gear 3 2023 will achieve the synchronous rotation of the gear 3 2023 and the meshing gear 20110 through meshing.

[0032] refer to Figure 2 , Figure 4 , Figure 5The bottom of the cover body 103 is connected to a vent pipe 2024, and a solenoid valve 2025 located inside the cover shell 2027 is installed on the vent pipe 2024. Both ends of the vent pipe 2024 are connected to an opening 1 2026. The top of the cover shell 2027 is connected to a discharge pipe 2028 that runs through the top of the cover body 103. The bottom of the discharge pipe 2028 is connected to an opening 2 2029 located on the inner side of the cover shell 2027. The pressure inside the inner shell 102 will enter the vent pipe 2024 through the opening 1 2026, and then blow toward the driving blade 2021 through the opening 1 2026 again, and then enter the discharge pipe 2028 through the opening 2 2029, and finally leave the reactor, wherein the solenoid valve 2025 is used in conjunction with the vent pipe 2024 for control.

[0033] Brief description of the use process: When the energy recovery reactor for the preparation of p-hydroxybenzoic acid is used, the material is put into the inner shell 102 through the pipeline 109. At this time, the operation of the rotating motor 2011 will drive the main rod 2012 to rotate, and the main rod 2012 will drive the outer ring 1 2013 to rotate synchronously, wherein the main rod 2012 is reversed. At this time, the outer ring 1 2013 and the inner ring 1 2014 do not affect each other, and the stirring effect of the p-hydroxybenzoic acid in the inner shell 102 will be achieved. After stirring and reacting, when the pressure inside the inner shell 102 needs to be discharged, the electromagnetic valve 2025 will be opened, and the pressure inside the inner shell 102 will enter the inside of the ventilation pipe 2024 through the opening 1 2026, and then blow to the driving blade 2021 through the opening 1 2026 again, causing the driving blade 2021 to rotate. The pressure range of common high-pressure reactors is between 0.1MPa and 10MPa, and the pressure generated by chemical changes inside the inner shell 102 will be converted into wind energy when it is depressurized, and has a large depressurization pressure, and blows on the driving blade 2021. The cross section of the blade part of the driving blade 2021 is a standard aerodynamic wing shape. When the vertical airflow flows through the aerodynamic wing, it will follow the shape of the aerodynamic wing and become an arc flow situation, and cause thrust to the driving blade 2021, and the driving blade 2021 will rotate under the action of the thrust. The airflow caused by the pressure will pass through the driving blade 2021 and then enter the discharge pipe 2028 through the second opening 2029, and finally leave the reactor. The rotation of the driving blade 2021 will drive the rod body 2022 to rotate, and the rotation of the rod body 2022 will drive the gear 3 2023 to rotate. The gear 3 2023 will realize the synchronous rotation of the gear 3 2023 and the meshing gear 20110 through meshing. The rotation of the meshing gear 20110 will drive the outer ring 2 2017 to rotate. At this time, the rotation of the outer ring 2 2017 is positive rotation. The outer ring 2 2017 will drive the inner ring 2 218 to rotate through the engagement of the ratchet teeth. In the synchronous rotation of the outer ring 2 2017 and the inner ring 2 2018, the rod body 1 219 and the gear 2 2016 will be realized. In the mutual engagement of the outer ring 1 2013 and the inner ring 1 2014, the outer ring 1 2013 and the inner ring 1 2014 will realize the synchronous positive rotation, and the inner ring 1 2014 will synchronously drive the stirring rod 104 to rotate. Among them, gear three 2023, meshing gear 20110, outer ring two 2017, inner ring two 2018 and gear two 2016 are all made of plastic, and special lubricating oil is applied in the contact gaps between two adjacent ones. At this time, the movement trend of the stirring rod 104 is opposite to the trend driven by the rotating motor 2011, and the stirring rod 104 will stir the p-hydroxybenzoic acid inside the inner shell 102 again. Through this setting, energy-saving stirring can be achieved during the long exhaust inside the inner shell 102, and p-hydroxybenzoic acid can be prevented from precipitating while saving energy. This setting is conducive to saving the production cost of the workshop and can reuse the energy of the exhaust gas.The pressure pipe 107 cooperates with external equipment to change the pressure inside the inner shell 102, the pressure gauge 108 cooperates with the pressure to check and monitor, the pipeline 2 1010 cooperates with the inner shell 102 to discharge the reacted materials, and the valve 1011 cooperates with the pipeline 1 109 and the pipeline 2 1010 for control use.

[0034] Embodiment 2: refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 , Figure 8 , Fig. 9 A kind of energy recovery reactor for preparing p-hydroxybenzoic acid comprises an outer shell mechanism 1, a circulation mechanism 3 is arranged on the outer side of an inner shell 102, the circulation mechanism 3 comprises a reciprocating assembly 301 and a transmission assembly 302, the reciprocating assembly 301 comprises a rotating rod 3011, the transmission assembly 302 comprises a water storage tank 3021 and a water pump 3024, when the energy recovery reactor for preparing p-hydroxybenzoic acid is used, the pressure in the regulating shell 3018 is changed by the positive rotation transmission of the driven blade 2021 through the gear 1 2015. When the water pump 3024 is shut down, under the action of the diaphragm 3017, the water inside the water tank 3021 will enter the circulation pipe 106 through the connecting pipe 3026, and then the pressure change in the regulating shell 3018 will be used to achieve the circulation effect of the water in the circulation pipe 106. The one-way valve 3029 ensures the use effect of the water pipe 3028 and the circulation pipe 106, thereby changing the transfer method of the liquid in the water tank 3021, saving the operating cost and consumption of the water pump 3024, and further improving the energy recovery effect of the recovery reactor.

[0035] refer to Figure 3 , Figure 7 , Figure 8The rotating rod 3011 and the cover body 103 are rotatably connected to each other through a bearing. The surface of the rotating rod 3011 is fixedly sleeved with an inner ring 3019, and the surface of the inner ring 3019 is engaged with an outer ring 30110. The surface of the outer ring 30110 is fixedly sleeved with a gear 4 3012 meshing with the gear 1 2015. A disk 3013 is fixedly installed at the bottom of the rotating rod 3011. A guide ring 3014 is provided at the bottom of the disk 3013. A guide block 3015 fixedly connected to the disk 3013 is slidably sleeved on the inner side of the guide ring 3014. The rotation of the gear 1 2015 will drive the gear 4 3012 to rotate. 12 rotates, gear four 3012 will drive outer ring three 30110 to rotate, and the positive rotation of outer ring three 30110 will drive inner ring three 3019 and rotating rod 3011 to rotate synchronously, wherein the rotating rod 3011 drives the disk 3013 to rotate, and the disk 3013 will drive the guide block 3015 to realize the movement trend around the rotating rod 3011 as the center of the circle, thereby realizing the lateral movement of the guide ring 3014, and the movement trend is reciprocating movement.

[0036] refer to Figure 7 , Figure 8 A connecting plate 3016 is fixedly installed on one side of the guide ring 3014, and one end of the connecting plate 3016 is provided with an adjusting shell 3018 fixedly connected to the inner side of the cover body 103. The inner side of the adjusting shell 3018 is slidably connected with a diaphragm 3017 fixedly connected to one end of the connecting plate 3016. The movement of the guide ring 3014 will drive the connecting plate 3016 to rotate, and the connecting plate 3016 will drive the diaphragm 3017 to move in the adjusting shell 3018, thereby changing the pressure in the adjusting shell 3018.

[0037] refer to Figure 1 , Figure 2 , Fig. 9The water tank 3021 and the water pump 3024 are both located on one side of the casing 101. A semiconductor refrigeration sheet 3022 is embedded in the bottom of the water tank 3021. A radiator 3023 is attached to the bottom of the semiconductor refrigeration sheet 3022. One end of the circulation pipe 106 passes through the top of the casing 101 to the inside of the cover body 103 and is connected to the adjustment shell 3018. The other end of the circulation pipe 106 passes through the surface of the casing 101 and is connected to a three-way pipe 3025. One end of the three-way pipe 3025 is connected to the water outlet of the water pump 3024. The other end of the three-way pipe 3025 is connected to a connecting pipe 3026 connected to the water tank 3021. The water inlet of the water pump 3024 is connected to a connecting pipe connected to the water tank 3021. Two 3027, the top of the water tank 3021 is connected with a water pipe 3028 which penetrates to the inner side of the cover body 103 and is connected to the regulating shell 3018, and one end of the water pipe 3028 and the circulation pipe 106 are both installed with a one-way valve 3029. The semiconductor cooling plate 3022 and the radiator 3023 are used in coordination with the temperature change of the liquid inside the water tank 3021. Under the operation of the water pump 3024, the water in the water tank 3021 will pass through the connecting pipe two 3027 to the three-way pipe 3025, and then enter into the circulation pipe 106, and finally pass through the regulating shell 3018 to the water pipe 3028, forming a circulation effect, in which the pressure inside the regulating shell 3018 is in a stable state. In addition, when the water pump 3024 is shut down, the water inside the water tank 3021 will enter the circulation pipe 106 through the connecting pipe 3026, and then the pressure change in the regulating shell 3018 will be adjusted to achieve the circulation effect of the water in the circulation pipe 106, wherein the one-way valve 3029 ensures the use effect of the water pipe 3028 and the circulation pipe 106.

[0038] Brief description of the use process: In the use of the energy recovery reactor for the preparation of p-hydroxybenzoic acid, the gear one 2015 will drive the gear four 3012 to rotate under the positive rotation transmission of the driven blade 2021, and the gear four 3012 will drive the outer ring three 30110 to rotate. During the positive rotation of the outer ring three 30110, the inner ring three 3019 and the rotating rod 3011 will be driven to rotate synchronously, wherein the rotating rod 3011 drives the disk 3013 to rotate, and the disk 3013 will drive the guide block 3015 to realize a movement trend around the rotating rod 3011 as the center of the circle, thereby realizing the lateral movement of the guide ring 3014, and the movement trend is reciprocating movement. The movement of the guide ring 3014 will drive the connecting plate 3016 to rotate, and the connecting plate 3016 will drive the diaphragm 3017 to realize the movement in the regulating shell 3018, so as to change the pressure in the regulating shell 3018. The semiconductor cooling sheet 3022 and the radiator 3023 are used in coordination with the temperature change of the liquid inside the water storage tank 3021. Under the normal operation of the water pump 3024, the water in the water storage tank 3021 will enter the three-way pipe 3025 through the connecting pipe 2 3027, and then enter the circulation pipe 106, and then enter the water pipe 3028 through the regulating shell 3018, forming a circulation effect, wherein the pressure inside the regulating shell 3018 is in a stable state. In addition, when the water pump 3024 is stopped, under the action of the diaphragm 3017, the water inside the water storage tank 3021 will enter the circulation pipe 106 through the connecting pipe 1 3026, and then the pressure change in the regulating shell 3018 will achieve the circulation effect of the water in the circulation pipe 106. In the contact between the diaphragm 3017 and the regulating shell 3018, the use of the diaphragm cylinder can be referred to, which has a low resistance effect and a small friction coefficient, which is conducive to the flexible movement of the diaphragm 3017 in the regulating shell 3018. In addition, the gear 4 3012, the outer ring 3 30110, the inner ring 3 3019, the disc 3013 and the connecting plate 3016 are all made of plastic, which is conducive to reducing the transmission resistance. The gear 4 3012, the outer ring 3 30110 and the inner ring 3 3019 will be coated with special lubricating oil in the contact gap between the two adjacent ones. The one-way valve 3029 ensures the use effect of the water pipe 3028 and the circulation pipe 106, thereby changing the transmission mode of the liquid in the water storage tank 3021, saving the operating cost and consumption of the water pump 3024, and further improving the energy recovery effect of the recovery reactor.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An energy recovery reactor for preparing p-hydroxybenzoic acid, comprising a shell structure (1), characterized in that: The outer shell mechanism (1) comprises an outer shell (101) and an inner shell (102); the outer shell (101) is sleeved on the surface of the inner shell (102); the top flange of the inner shell (102) is connected to a cover body (103); a one-way transmission mechanism (2) is provided inside the outer shell mechanism (1); the one-way transmission mechanism (2) comprises a transmission assembly (201) and a drive assembly (202); the transmission assembly (201) comprises a rotating motor (2011); the drive assembly (202) comprises a drive blade (2021); a circulation mechanism (3) is provided on the outer side of the inner shell (102); the circulation mechanism (3) comprises a reciprocating assembly (301) and a transmission assembly (302); the reciprocating assembly (301) comprises a rotating rod (3011); and the transmission assembly (302) comprises a water storage tank (3021) and a water pump (3024).

2. The energy recovery reactor for preparing p-hydroxybenzoic acid according to claim 1, characterized in that: The inner side of the cover body (103) is rotatably connected with a stirring rod (104) that passes through the cover body (103) and reaches the inside of the inner shell (102); stirring plates (105) are fixedly mounted on both sides of the stirring rod (104); the inner side of the casing (101) is provided with a circulation pipe (106) that is sleeved on the surface of the inner shell (102); the top of the cover body (103) is fixedly mounted with a pressure pipe (107) that passes through the inside of the inner shell (102); a pressure gauge (108) is mounted on the pressure pipe (107); one side of the casing (101) is respectively fixedly mounted with a pipe 1 (109) and a pipe 2 (1010) that are in communication with the inner shell (102); valves (1011) are mounted on the pipe 1 (109) and the pipe 2 (1010).

3. The energy recovery reactor for preparing p-hydroxybenzoic acid according to claim 2, characterized in that: The rotary motor (211) and the cover body (103) are fixedly mounted to each other; the output end of the rotary motor (2011) is fixedly sleeved with a main rod (2012) penetrating into the cover body (103) via a coupling; an outer ring one (2013) is fixedly mounted on the bottom of the main rod (2012); an inner ring one (2014) is engaged with the inner side of the outer ring one (2013); and the bottom of the inner ring one (2014) and the stirring rod (104) are fixedly mounted to each other.

4. The energy recovery reactor for preparing p-hydroxybenzoic acid according to claim 3, characterized in that: The surface of the stirring rod (104) is fixedly sleeved with gear one (2015), the surface of the gear one (2015) is meshed with gear two (2016), the inner side of the gear two (2016) is fixedly sleeved with rod body one (2019), the surface of the rod body one (2019) is fixedly sleeved with inner ring two (2018) located at the top of gear two (2016), the surface of the inner ring two (2018) is meshed with outer ring two (2017), and the surface of the outer ring two (2017) is fixedly sleeved with a meshing gear (20110).

5. The energy recovery reactor for preparing p-hydroxybenzoic acid according to claim 1, characterized in that: The outer side of the driving blade (2021) is provided with a cover shell (2027) fixedly connected to the inner side of the cover body (103); the top of the driving blade (2021) is fixedly installed with a rod body 2 (2022) penetrating to the top of the cover shell (2027); the rod body 2 (2022) and the cover shell (2027) are rotatably connected to each other via a bearing; the top of the rod body 2 (2022) is fixedly sleeved with a gear 3 (2023); the gear 3 (2023) and the meshing gear (20110) are meshed with each other.

6. The energy recovery reactor for preparing p-hydroxybenzoic acid according to claim 5, characterized in that: The bottom of the cover body (103) is connected to a vent pipe (2024), a solenoid valve (2025) located inside the cover shell (2027) is installed on the vent pipe (2024), both ends of the vent pipe (2024) are connected to an opening 1 (2026), the top of the cover shell (2027) is connected to a discharge pipe (2028) that passes through the top of the cover body (103), and the bottom of the discharge pipe (2028) is connected to an opening 2 (2029) located inside the cover shell (2027).

7. The energy recovery reactor for preparing p-hydroxybenzoic acid according to claim 1, characterized in that: The rotating rod (3011) and the cover body (103) are rotatably connected to each other via a bearing; an inner ring three (3019) is fixedly sleeved on the surface of the rotating rod (3011); an outer ring three (30110) is engaged on the surface of the inner ring three (3019); a gear four (3012) meshing with a gear one (2015) is fixedly sleeved on the surface of the outer ring three (30110); a disk (3013) is fixedly mounted on the bottom of the rotating rod (3011); a guide ring (3014) is provided at the bottom of the disk (3013); a guide block (3015) fixedly connected to the disk (3013) is slidably sleeved on the inner side of the guide ring (3014).

8. The energy recovery reactor for preparing p-hydroxybenzoic acid according to claim 7, characterized in that: A connecting plate (3016) is fixedly mounted on one side of the guide ring (3014); an adjusting shell (3018) fixedly connected to the inner side of the cover body (103) is provided at one end of the connecting plate (3016); and a diaphragm (3017) fixedly connected to one end of the connecting plate (3016) is slidably connected to the inner side of the adjusting shell (3018).

9. The energy recovery reactor for preparing p-hydroxybenzoic acid according to claim 8, characterized in that: The water storage tank (3021) and the water pump (3024) are both located on one side of the casing (101); a semiconductor cooling plate (3022) is embedded in the bottom of the water storage tank (3021); a radiator (3023) is adhered to the bottom of the semiconductor cooling plate (3022); one end of the circulation pipe (106) passes through the top of the casing (101) to the inside of the cover body (103) and is connected to the regulating shell (3018); the other end of the circulation pipe (106) passes through the surface of the casing (101) and is connected to a three-way pipe (3025); the three-way pipe (302 One end of the three-way pipe (3025) is connected to the water outlet of the water pump (3024), the other end of the three-way pipe (3025) is connected to a connecting pipe 1 (3026) connected to the water storage tank (3021), the water inlet of the water pump (3024) is connected to a connecting pipe 2 (3027) connected to the water storage tank (3021), the top of the water storage tank (3021) is connected to a water pipe (3028) that passes through the inner side of the cover body (103) and is connected to the regulating shell (3018), and one end of the water pipe (3028) and the circulation pipe (106) are both installed with a one-way valve (3029).

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