A E202 double-acting heat exchanger for ethylene carbonate

Abstract

The invention relates to the field of ethylene carbonate and discloses an E202 double-acting heat exchanger for ethylene carbonate. The heat exchanger comprises a reactor body. A two-way port 1 is fixedly connected at the lower left side of the reactor body, a circulation mechanism is fixedly connected at the left end of the two-way port 1, a two-way port 2 is fixedly connected at the upper right side of the reactor body, a discharge port is integrally formed at the top of the reactor body, and a feed port is integrally formed at the bottom of the reactor body. Materials enter the reactor body from the feed port and move upwards, and exit from the discharge port. When the materials pass through the reactor body, they exchange heat with steam entering from the two-way port 2. At the initial start-up stage, steam passes through the reactor body, and the steam heats the materials to increase the temperature. After entering the reactor body, the temperature of the reactor body is increased. When the temperature of the reactor rises to an index range, the steam entry is stopped, and the steam that releases heat becomes high-temperature condensate and flows out from the two-way port 1 to a high-temperature condensate system.

Description

Technical Field

[0001] The invention relates to the field of ethylene carbonate, and more specifically to an E202 double-acting heat exchanger for ethylene carbonate. Background Art

[0002] Ethylene carbonate is an organic solvent with excellent performance. It can dissolve a variety of polymers. It can be used as an organic intermediate and can replace ethylene oxide in dioxygenation reactions. It is the main raw material for producing dimethyl carbonate by transesterification. It can also be used as a raw material for synthesizing furazolidone, water glass slurry, fiber finishing agent, etc.

[0003] The existing ethylene carbonate reactor has a single function and cannot effectively convert the heating steam into condensed water for condensation in the reaction process. It cannot achieve the effect of circulating heating and condensation, and needs to be improved. For this reason, we proposed an E202 double-acting heat exchanger for ethylene carbonate. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide an E202 double-acting heat exchanger for ethylene carbonate, which can solve the problem that the existing ethylene carbonate reactor has a single function and cannot effectively convert the steam used for heating into condensed water for condensation in the reaction process, and cannot achieve the effect of circulating heating and condensation.

[0005] To solve the above technical problems, according to one aspect of the present invention, more specifically, an E202 double-acting heat exchanger for ethylene carbonate, comprising a reactor body, a two-way port 1 is fixedly connected at the lower left side of the reactor body, a circulation mechanism is fixedly connected at the left end of the two-way port 1, a two-way port 2 is fixedly connected at the upper right side of the reactor body, a discharge port is integrally formed at the top of the reactor body, a feed port is integrally formed at the bottom of the reactor body, a three-way valve is fixedly connected at the right end of the two-way port 2, and two branch pipes 1 are integrally formed on the outer wall of the three-way valve.

[0006] Furthermore, an expansion joint is integrally formed on the outer side wall of the reactor body.

[0007] Furthermore, the outer side wall of the reactor body is located above the expansion node and is fixedly connected to a ground plate support seat.

[0008] Furthermore, the circulation mechanism includes a water collecting tank, a fixed plate is fixedly connected to the upper surface of the water collecting tank, a plurality of condensation plates are fixedly connected to the left side of the fixed plate, a plurality of condensation grooves are provided inside the condensation plate, a leakage pipe 1 is fixedly connected between two condensation grooves opposite to each other, a plurality of leakage pipes 2 are fixedly connected between the condensation groove located at the lower right side of the fixed plate and the water collecting tank, and a plurality of through-type hollow grooves are provided on the upper surface of the condensation plate.

[0009] Furthermore, a water pump is fixedly installed at the lower right side of the water collecting tank, the input end of the water pump is connected to the interior of the water collecting tank, the output end of the water pump is fixedly connected to a water outlet pipe, the top of the water outlet pipe is fixedly connected to a transfer box, two transfer chambers are provided inside the transfer box, two solenoid valves are embedded and installed inside the two transfer chambers, the transfer box is connected to the interior of the two-way port one, an intake pipe is fixedly connected to the top of the water collecting tank, the opposite ends of the intake pipe and the water outlet pipe are respectively connected to the interiors of the two transfer chambers, the left end of the intake pipe is fixedly connected to an air intake cylinder, a plurality of through-type docking holes are provided on the left side of the air intake cylinder, and a plurality of ventilation pipes are fixedly connected between the plurality of docking holes and the plurality of condensation tanks located above the fixed plate.

[0010] Furthermore, a mounting rod is symmetrically fixedly connected inside the air intake cylinder, and a motor 1 is commonly fixedly connected to the opposite ends of the mounting rod. The left end of the output shaft of the motor 1 is fixedly connected to a shaft rod, and the outer side wall of the shaft rod is fixedly connected to a fan blade.

[0011] Furthermore, a sealing baffle is fixedly connected to the left end of the shaft, and a through-type docking groove is provided on the left side of the sealing baffle.

[0012] Furthermore, a through-type air vent is opened on the right side of the upper surface of the water collecting tank, and a shielding plate is rotatably connected to the inside of the air vent via a rotating shaft, and a spring is fixedly connected between the shielding plate and the water collecting tank.

[0013] Furthermore, a second motor is fixedly connected to the left side of the water collecting tank, a right end of an output shaft of the second motor is located inside the water collecting tank and is fixedly connected to a stirring shaft, and a plurality of stirring rods are fixedly connected to the outer wall of the stirring shaft.

[0014] The beneficial effects of the E202 double-acting heat exchanger for ethylene carbonate of the present invention are:

[0015] The material enters the reactor body from the inlet and moves upward, and then exits from the outlet. When the material passes through the reactor body, it exchanges heat with the steam entering from the two-way port. At the beginning of the operation, the steam passes through the reactor body, and the steam heats the material to increase the temperature. After entering the reactor body, the temperature of the reactor body is increased. When the temperature of the reactor rises to the index range, the steam entry is stopped, and the steam that releases heat becomes high-temperature condensate and flows out from the two-way port 1 to the high-temperature condensate system.

[0016] When the reactor body is heated up and the feeding reaction begins, one of the steam pipes entering the two branch pipes 1 will be closed through a three-way valve, and the high-temperature condensate water from the two-way port 2 will be completely discharged. The low-temperature condensate water inlet branch pipe 1 from the two-way port 2 of the shell side will be opened. At this time, the material and the low-temperature condensate water will exchange heat, and the low-temperature condensate water will take out the heat of the material, absorb the heat, and become high-temperature condensate water to the condensate water system. After the low-temperature condensate water takes away the heat, the temperature of the reactor body is controlled within the index range. The circulation mechanism can condense the discharged steam into water and recirculate it into the reactor body;

[0017] When the motor is started and the fan blades are driven to rotate and extract air, one of the two solenoid valves is opened to facilitate the extraction of steam. The extracted steam will flow into the condensation tank and condense into water before entering the water collecting tank. Then the water pump is started and the corresponding solenoid valve is opened so that water can be extracted into the reactor body for cyclic reaction. This method can effectively circulate the steam and condensed water for reaction. When the motor is started and steam is extracted, with the cooperation of the sealing baffle and the docking groove, multiple docking holes will circulate and dock with the docking groove in turn to intake air, so that multiple condensation tanks can alternately condense steam, avoiding the problem of poor condensation effect caused by steam flow when a single condensation tank is used.

[0018] When the water pump is pumping water or the motor is started to pump air, the vent is opened to facilitate ventilation and pumping water. When the water pump and the motor are stopped, the vent is covered by the spring to ensure the sealing of the water collecting tank.

[0019] Start motor 2 to drive the stirring shaft to rotate, and then the stirring rod can stir the condensed water to further accelerate the water cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] Figure 1 This is a schematic diagram of the overall structure of an E202 double-acting heat exchanger for ethylene carbonate of the present invention;

[0022] Figure 2 It is a cross-sectional structural schematic diagram of a circulation mechanism of an E202 double-acting heat exchanger for ethylene carbonate of the present invention;

[0023] Figure 3It is a top view structural schematic diagram of a cross section of a condensing plate of an E202 double-acting heat exchanger for ethylene carbonate of the present invention;

[0024] Figure 4 It is a cross-sectional structural schematic diagram of an air inlet cylinder of an E202 double-acting heat exchanger for ethylene carbonate of the present invention;

[0025] Figure 5 The present invention is a schematic side structural view of a sealing baffle of an E202 double-acting heat exchanger for ethylene carbonate.

[0026] In the figure: 1, reactor body; 2, two-way port 1; 3, circulation mechanism; 4, two-way port 2; 5, discharge port; 6, inlet port; 7, three-way valve; 8, branch pipe 1; 9, expansion joint; 10, grounding plate support seat; 301, water collecting box; 302, fixed plate; 303, condensation plate; 304, condensation tank; 305, leakage pipe 1; 306, leakage pipe 2; 307, water pump; 308, water outlet pipe; 309, transfer box; 31 0. Transfer chamber; 311. Solenoid valve; 312. Intake pipe; 313. Intake cylinder; 314. Docking hole; 315. Mounting rod; 316. Motor 1; 317. Shaft; 318. Fan blade; 319. Sealing baffle; 320. Docking groove; 321. Vent; 322. Shield; 323. Spring; 324. Motor 2; 325. Stirring shaft; 326. Stirring rod; 327. Hollow groove; 328. Vent pipe. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0028] According to one aspect of the present invention, Figure 1-5 As shown, an E202 double-acting heat exchanger for ethylene carbonate is provided, comprising a reactor body 1, a two-way port 2 is fixedly connected at the lower left side of the reactor body 1, a circulation mechanism 3 is fixedly connected at the left end of the two-way port 2, a two-way port 4 is fixedly connected at the upper right side of the reactor body 1, a discharge port 5 is integrally formed at the top of the reactor body 1, a feed port 6 is integrally formed at the bottom of the reactor body 1, a three-way valve 7 is fixedly connected at the right end of the two-way port 4, and two branch pipes 8 are integrally formed on the outer side wall of the three-way valve 7;

[0029] The material enters the reactor body 1 from the inlet 6 and moves upward, and exits from the outlet 5. When the material passes through the reactor body 1, it exchanges heat with the steam entering the two-way port 4. At the beginning of the operation, the steam passes through the reactor body 1, and the steam heats the material to increase the temperature. After entering the reactor body 1, the temperature of the reactor body 1 is increased. When the temperature of the reactor rises to the index range, the steam entry is stopped, and the steam that releases heat becomes high-temperature condensate and flows out from the two-way port 2 to the high-temperature condensate system; when the reactor body 1 is heated up and the feeding reaction begins, the three-way valve 7 is used to close one of the steam pipes entering the two branch pipes 8, and the high-temperature condensate of the two-way port 4 is completely discharged, and the low-temperature condensate inlet branch pipe 8 of the two-way port 24 of the shell side is opened. At this time, the material and the low-temperature condensate exchange heat, and the low-temperature condensate takes out the heat of the material, and after absorbing the heat, it becomes high-temperature condensate and goes to the condensate system. After the low-temperature condensate takes away the heat, the temperature of the reactor body 1 is controlled within the index range, and the circulation mechanism 3 can condense the discharged steam into water and recirculate it into the reactor body 1.

[0030] In this embodiment, the outer side wall of the reactor body 1 is integrally formed with an expansion joint 9;

[0031] It has a pressure relief effect.

[0032] In this embodiment, the outer wall of the reactor body 1 is located above the expansion joint 9 and is fixedly connected with a ground plate support seat 10;

[0033] Used for device support.

[0034] In the present embodiment, the circulation mechanism 3 includes a water collecting tank 301, a fixing plate 302 is fixedly connected to the upper surface of the water collecting tank 301, a plurality of condensing plates 303 are fixedly connected to the left side of the fixing plate 302, a plurality of condensing grooves 304 are provided inside the condensing plate 303, a leakage pipe 1 305 is fixedly connected between two condensing grooves 304 opposite to each other, a plurality of leakage pipes 2 306 are fixedly connected between the condensing groove 304 located at the lower right side of the fixing plate 302 and the water collecting tank 301, a plurality of through-type hollow grooves 327 are provided on the upper surface of the condensing plate 303, a water pump 307 is fixedly installed at the lower right side of the water collecting tank 301, an input end of the water pump 307 is connected to the inside of the water collecting tank 301, an output end of the water pump 307 is fixedly connected to a water outlet pipe 308, a transfer box 309 is fixedly connected to the top of the water outlet pipe 308, two transfer chambers 310 are provided inside the transfer box 309, and the interiors of the two transfer chambers 310 are embedded with Two solenoid valves 311, the transfer box 309 is connected to the inside of the two-way port 2, the top of the water collecting box 301 is fixedly connected with an air intake pipe 312, the opposite ends of the air intake pipe 312 and the water outlet pipe 308 are respectively connected to the inside of the two transfer chambers 310, the left end of the air intake pipe 312 is fixedly connected with an air intake cylinder 313, and the left side of the air intake cylinder 313 is provided with a plurality of through-type docking holes 314, and the plurality of docking holes 314 are connected to the plurality of condensation grooves located above the fixed plate 302. A plurality of ventilation pipes 328 are fixedly connected between 304, a mounting rod 315 is symmetrically fixedly connected inside the air inlet cylinder 313, and a motor 1 316 is fixedly connected to the opposite ends of the mounting rod 315, a shaft 317 is fixedly connected to the left end of the output shaft of the motor 1 316, a fan blade 318 is fixedly connected to the outer wall of the shaft 317, a sealing baffle 319 is fixedly connected to the left end of the shaft 317, and a through-type docking groove 320 is opened on the left side of the sealing baffle 319;

[0035] When the motor 316 is started to drive the fan blade 318 to rotate and extract air, one of the two solenoid valves 311 is opened to facilitate the extraction of steam. The extracted steam will flow into the condensation tank 304 and condense into water before entering the water collecting tank 301. Then the water pump 307 is started and the corresponding solenoid valve 311 is opened to extract water into the reactor body 1 for a circulating reaction. This method can effectively circulate the steam and condensed water. When the motor 316 is started and steam is extracted, with the cooperation of the sealing baffle 319 and the docking groove 320, the multiple docking holes 314 will circulate in turn and dock with the docking groove 320 to intake air, so that the multiple condensation grooves 304 can alternately condense steam, thereby avoiding the problem of a single condensation groove 304 becoming hot due to steam flow and poor condensation effect when it is used.

[0036] In this embodiment, a through-type vent 321 is provided on the right side of the upper surface of the water collecting box 301, and a shielding plate 322 is rotatably connected to the inside of the vent 321 through a rotating shaft, and a spring 323 is fixedly connected between the shielding plate 322 and the water collecting box 301;

[0037] When the water pump 307 pumps water or the motor 316 starts to pump air, the vent 321 opens to facilitate ventilation and pumping. After the water pump 307 and the motor 316 stop, the vent 321 is blocked under the pull of the spring 323 to ensure that the water collecting tank 301 is sealed.

[0038] In this embodiment, a second motor 324 is fixedly connected to the left side of the water collecting tank 301, and the right end of the output shaft of the second motor 324 is located inside the water collecting tank 301 and is fixedly connected to a stirring shaft 325, and the outer wall of the stirring shaft 325 is fixedly connected to a plurality of stirring rods 326;

[0039] The second starting motor 324 drives the stirring shaft 325 to rotate, and then the stirring rod 326 can stir the condensed water to further accelerate the water cooling effect.

[0040] The working principle of the device is as follows: the material enters the reactor body 1 from the feed inlet 6 and moves upward, and exits from the discharge port 5. When the material passes through the reactor body 1, it exchanges heat with the steam entering from the two-way port 4. At the beginning of the operation, the reactor body 1 passes steam, and the steam heats the material to increase the temperature. After entering the reactor body 1, the temperature of the reactor body 1 is increased. When the temperature of the reactor rises to the index range, the steam entry is stopped, and the steam that releases heat becomes high-temperature condensate and flows out from the two-way port 2 to the high-temperature condensate system; when the reactor body 1 is heated up and the feeding reaction begins, one of the steam pipes entering from the two branch pipes 8 is closed through the three-way valve 7, and the high-temperature condensate of the two-way port 4 is completely discharged, and the low-temperature condensate inlet branch pipe 8 of the two-way port 4 of the shell side is opened. At this time, the material exchanges heat with the low-temperature condensate, and the low-temperature condensate takes out the heat of the material, and after absorbing the heat, it becomes high-temperature condensate and goes to the condensate system. The low-temperature condensed water takes away the heat so that the temperature of the reactor body 1 is controlled within the index range. The circulation mechanism 3 can condense the discharged steam into water and recirculate it into the reactor body 1.

[0041] The electrical components that appear in this article are all electrical components that exist in reality.

[0042] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. An E202 double-acting heat exchanger for ethylene carbonate, comprising a reactor body (1), characterized in that: A two-way port (2) is fixedly connected to the lower left side of the reactor body (1), a circulation mechanism (3) is fixedly connected to the left end of the two-way port (2), a two-way port (4) is fixedly connected to the upper right side of the reactor body (1), a discharge port (5) is integrally formed on the top of the reactor body (1), a feed port (6) is integrally formed on the bottom of the reactor body (1), a three-way valve (7) is fixedly connected to the right end of the two-way port (4), and two branch pipes (8) are integrally formed on the outer side wall of the three-way valve (7); The circulation mechanism (3) comprises a water collecting box (301), a fixing plate (302) is fixedly connected to the upper surface of the water collecting box (301), a plurality of condensation plates (303) are fixedly connected to the left side of the fixing plate (302), a plurality of condensation grooves (304) are provided inside the condensation plate (303), a leakage pipe 1 (305) is fixedly connected between two condensation grooves (304) facing each other, a plurality of leakage pipes 2 (306) are fixedly connected between the condensation groove (304) located at the lower right side of the fixing plate (302) and the water collecting box (301), and a plurality of through-type hollow grooves (327) are provided on the upper surface of the condensation plate (303); A water pump (307) is fixedly installed at the lower right side of the water collecting tank (301), the input end of the water pump (307) is connected to the interior of the water collecting tank (301), the output end of the water pump (307) is fixedly connected to a water outlet pipe (308), the top of the water outlet pipe (308) is fixedly connected to a transfer box (309), the interior of the transfer box (309) is provided with two transfer chambers (310), the interiors of the two transfer chambers (310) are both embedded with two solenoid valves (311), the transfer box (309) and the interior of the two-way port (2) are connected to each other. The water collecting tank (301) and the water outlet pipe (308) are connected to each other, the top of the water collecting tank (301) is fixedly connected with an air intake pipe (312), the opposite ends of the air intake pipe (312) and the water outlet pipe (308) are respectively connected to the inside of the two transfer chambers (310), the left end of the air intake pipe (312) is fixedly connected with an air intake cylinder (313), the left side of the air intake cylinder (313) is provided with a plurality of through-type docking holes (314), and a plurality of ventilation pipes (328) are fixedly connected between the plurality of docking holes (314) and the plurality of condensation tanks (304) located above the fixing plate (302); The air inlet cylinder (313) is symmetrically fixedly connected with a mounting rod (315) inside, and the opposite ends of the mounting rod (315) are commonly fixedly connected with a motor 1 (316), and the left end of the output shaft of the motor 1 (316) is fixedly connected with a shaft rod (317), and the outer side wall of the shaft rod (317) is fixedly connected with a fan blade (318); The left end of the shaft rod (317) is fixedly connected to a sealing baffle (319), and a through-type docking groove (320) is provided on the left side of the sealing baffle (319).

2. The E202 double-acting heat exchanger for ethylene carbonate according to claim 1, characterized in that: An expansion joint (9) is integrally formed on the outer side wall of the reactor body (1).

3. The E202 double-acting heat exchanger for ethylene carbonate according to claim 2, characterized in that: The outer side wall of the reactor body (1) is located above the expansion joint (9) and is fixedly connected to a grounding plate support seat (10).

4. The E202 double-acting heat exchanger for ethylene carbonate according to claim 1, characterized in that: A through-type vent (321) is provided on the right side of the upper surface of the water collecting box (301), and a shielding plate (322) is rotatably connected to the inside of the vent (321) via a rotating shaft, and a spring (323) is fixedly connected between the shielding plate (322) and the water collecting box (301).

5. The E202 double-acting heat exchanger for ethylene carbonate according to claim 1, characterized in that: The left side of the water collecting box (301) is fixedly connected to a second motor (324); the right end of the output shaft of the second motor (324) is located inside the water collecting box (301) and is fixedly connected to a stirring shaft (325); the outer side wall of the stirring shaft (325) is fixedly connected to a plurality of stirring rods (326).

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