Multiple reboiler evaporation system

Abstract

The utility model provides a multiple reboiler evaporation system relates to reboiler evaporation system field, include: dewatering mechanism, dewatering mechanism includes dehydration tower, first shunt pipe, outlet pipe, water pump, first connecting pipe and second shunt pipe, one side of dewatering mechanism is provided with evaporation mechanism, evaporation mechanism includes forced circulation reboiler, support frame, second connecting pipe, inlet pipe and water valve. The utility model discloses, through the setting of water pump, the tower cauldron liquid is taken out through outlet pipe, then is transmitted into the inside of second shunt pipe through first connecting pipe, then is entered the inside of forced circulation reboiler through three groups of second connecting pipe respectively, utilizes steam heating tower cauldron liquid, partial gasification enters the inside of dehydration tower through inlet pipe, through the setting of three groups of forced circulation reboiler, increased the efficiency of heat exchange, through the setting of water valve, when the inactivation of a group of forced circulation reboiler, still can operate two groups of forced circulation reboilers.

Description

Technical Field

[0001] This utility model relates to the technical field of reboiler evaporation systems, and more particularly to a multi-reboiler evaporation system. Background Technology

[0002] In the distillation process of DMF wastewater solution, a reboiler is required to heat and evaporate the liquid in the column. In conventional operation, one reboiler corresponds to one dehydration column.

[0003] In existing technologies, as the processing capacity increases, the amount of waste liquid that the dehydration tower needs to evaporate increases, and the heat exchange efficiency of the reboiler is insufficient, resulting in inadequate evaporation. Utility Model Content

[0004] The purpose of this invention is to provide a multi-reboiler evaporation system to solve the problems mentioned in the background art, such as the increase in waste liquid that needs to be evaporated in the dehydration tower as the processing capacity increases, the insufficient heat exchange efficiency of the reboiler, and the insufficient evaporation capacity.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: including a dehydration mechanism, which includes a dehydration tower, a first diversion pipe, an outlet pipe, a water pump, a first connecting pipe, and a second diversion pipe. An evaporation mechanism is provided on one side of the dehydration mechanism, which includes a forced circulation reboiler, a support frame, a second connecting pipe, an inlet pipe, and a water valve.

[0006] In a preferred embodiment, one side of the bottom of the dehydration tower is fixedly connected to one end of the first diversion pipe, and one side of the bottom of the dehydration tower is fixedly connected to one end of the second connecting pipe.

[0007] In a preferred embodiment, the other end of the outlet pipe is fixedly connected to the inlet of the water pump, and the outlet of the water pump is fixedly connected to the bottom end of the first connecting pipe.

[0008] In a preferred embodiment, the first diversion pipe is located at the top of the outlet pipe, and the top end of the first connecting pipe is fixedly connected to one side of the second diversion pipe.

[0009] In a preferred embodiment, a forced circulation reboiler is provided on one side of the dehydration tower, and three sets of the forced circulation reboiler are provided.

[0010] In a preferred embodiment, the outer wall of the forced circulation reboiler is fixedly connected to one side of the support frame, and the top of the forced circulation reboiler is fixedly connected to the bottom end of the second connecting pipe.

[0011] In a preferred embodiment, the other end of the second connecting pipe is fixedly connected to one side of the second branch pipe, and the bottom of the forced circulation reboiler is fixedly connected to the top of the inlet pipe.

[0012] In a preferred embodiment, a water valve is provided at the top of the water inlet pipe, and the other end of the water inlet pipe is fixedly connected to one side of the first diversion pipe.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, high-boiling-point substances accumulate at the bottom of the dehydration tower. The bottom liquid is pumped out through the outlet pipe by a water pump, and then enters the interior of the second diversion pipe through the first connecting pipe. Then, it enters the interior of the forced circulation reboiler through three sets of second connecting pipes. The bottom liquid is heated by steam, and part of it is vaporized and enters the interior of the dehydration tower through the inlet pipe. The setting of three sets of forced circulation reboilers increases the heat exchange efficiency.

[0014] 2. In this utility model, when cleaning the forced circulation reboiler, the water valve at the bottom of the forced circulation reboiler to be cleaned is closed, and a cleaning force is injected into the forced circulation reboiler by the water pump. Then, the second connecting pipe at the part to be cleaned can be disconnected, and the inside of the forced circulation reboiler can be cleaned manually by using a high-pressure water gun. Due to the setting of the water valve, when one set of forced circulation reboilers is stopped, the other two sets of forced circulation reboilers can still be operated. Attached Figure Description

[0015] Figure 1 A schematic diagram of a multi-reboiler evaporation system provided by this utility model; Figure 2 A schematic diagram of the dehydration mechanism of a multi-reboiler evaporation system provided by this utility model; Figure 3 This is a schematic diagram of the evaporation mechanism of a multi-reboiler evaporation system provided by this utility model.

[0016] Legend: 1. Dehydration mechanism; 101. Dehydration tower; 102. First branch pipe; 103. Water outlet pipe; 104. Water pump; 105. First connecting pipe; 106. Second branch pipe; 2. Evaporation mechanism; 201. Forced circulation reboiler; 202. Support frame; 203. Second connecting pipe; 204. Water inlet pipe; 205. Water valve. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-3 The present invention provides a technical solution comprising: a dehydration mechanism 1, which includes a dehydration tower 101, a first diversion pipe 102, a water outlet pipe 103, a water pump 104, a first connecting pipe 105, and a second diversion pipe 106. An evaporation mechanism 2 is provided on one side of the dehydration mechanism 1, which includes a forced circulation reboiler 201, a support frame 202, a second connecting pipe 203, a water inlet pipe 204, and a water valve 205.

[0019] In one embodiment, the bottom side of the dehydration tower 101 is fixedly connected to one end of the first diversion pipe 102, the bottom side of the dehydration tower 101 is fixedly connected to one end of the second connecting pipe 203, the other end of the outlet pipe 103 is fixedly connected to the inlet of the water pump 104, the outlet of the water pump 104 is fixedly connected to the bottom end of the first connecting pipe 105, the first diversion pipe 102 is located at the top of the outlet pipe 103, the top end of the first connecting pipe 105 is fixedly connected to one side of the second diversion pipe 106, and a forced circulation reboiler 201 is provided on one side of the dehydration tower 101, and three sets of forced circulation reboilers 201 are provided.

[0020] Specifically: High-boiling-point substances accumulate at the bottom of the dehydration tower 101. The water pump 104 draws the bottom liquid out through the outlet pipe 103, then enters the interior of the second diversion pipe 106 through the first connecting pipe 105, and then enters the interior of the forced circulation reboiler 201 through three sets of second connecting pipes 203. The bottom liquid is heated by steam, and part of it is vaporized and enters the interior of the dehydration tower 101 through the inlet pipe 204. The setting of three sets of forced circulation reboilers 201 increases the heat exchange efficiency.

[0021] In one embodiment, the outer wall of the forced circulation reboiler 201 is fixedly connected to one side of the support frame 202, the top of the forced circulation reboiler 201 is fixedly connected to the bottom end of the second connecting pipe 203, the other end of the second connecting pipe 203 is fixedly connected to one side of the second diversion pipe 106, the bottom of the forced circulation reboiler 201 is fixedly connected to the top end of the water inlet pipe 204, a water valve 205 is provided at the top of the water inlet pipe 204, and the other end of the water inlet pipe 204 is fixedly connected to one side of the first diversion pipe 102.

[0022] Specifically: When cleaning the forced circulation reboiler 201, by closing the water valve 205 at the bottom of the forced circulation reboiler 201 that needs to be cleaned, a cleaning force is injected into the forced circulation reboiler 201 by the water pump 104. Then, the second connecting pipe 203 at the part that needs to be cleaned can be disconnected, and the inside of the forced circulation reboiler 201 can be cleaned manually by using a high-pressure water gun. Due to the setting of the water valve 205, when one set of forced circulation reboilers 201 is shut down, the other two sets of forced circulation reboilers 201 can still be operated.

[0023] Working principle: High-boiling-point substances accumulate at the bottom of the dehydration tower 101. The water pump 104 draws the bottom liquid out through the outlet pipe 103, then through the first connecting pipe 105 into the interior of the second branch pipe 106, and then through three sets of second connecting pipes 203 into the interior of the forced circulation reboiler 201. Steam is used to heat the bottom liquid, and part of it is vaporized and enters the interior of the dehydration tower 101 through the inlet pipe 204. When cleaning the forced circulation reboiler 201, the water valve 205 at the bottom of the forced circulation reboiler 201 to be cleaned is closed, and then a cleaning force is injected into the forced circulation reboiler 201 by the water pump 104. Alternatively, the second connecting pipe 203 at the part to be cleaned can be removed, and the interior of the forced circulation reboiler 201 can be cleaned manually using a high-pressure water gun.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A multi-reboiler evaporation system, characterized in that, include: The dehydration mechanism (1) includes a dehydration tower (101), a first branch pipe (102), an outlet pipe (103), a water pump (104), a first connecting pipe (105), and a second branch pipe (106). An evaporation mechanism (2) is provided on one side of the dehydration mechanism (1). The evaporation mechanism (2) includes a forced circulation reboiler (201), a support frame (202), a second connecting pipe (203), an inlet pipe (204), and a water valve (205).

2. The evaporation system with multiple reboilers according to claim 1, characterized in that: The bottom side of the dehydration tower (101) is fixedly connected to one end of the first diversion pipe (102), and the bottom side of the dehydration tower (101) is fixedly connected to one end of the second connecting pipe (203).

3. The evaporation system with multiple reboilers according to claim 2, characterized in that: The other end of the outlet pipe (103) is fixedly connected to the inlet of the water pump (104), and the outlet of the water pump (104) is fixedly connected to the bottom end of the first connecting pipe (105).

4. The evaporation system with multiple reboilers according to claim 3, characterized in that: The first diversion pipe (102) is located at the top of the outlet pipe (103), and the top end of the first connecting pipe (105) is fixedly connected to one side of the second diversion pipe (106).

5. The evaporation system with multiple reboilers according to claim 1, characterized in that: A forced circulation reboiler (201) is provided on one side of the dehydration tower (101), and three sets of the forced circulation reboiler (201) are provided.

6. The evaporation system with multiple reboilers according to claim 5, characterized in that: The outer wall of the forced circulation reboiler (201) is fixedly connected to one side of the support frame (202), and the top of the forced circulation reboiler (201) is fixedly connected to the bottom end of the second connecting pipe (203).

7. The evaporation system with multiple reboilers according to claim 6, characterized in that: The other end of the second connecting pipe (203) is fixedly connected to one side of the second diversion pipe (106), and the bottom of the forced circulation reboiler (201) is fixedly connected to the top of the water inlet pipe (204).

8. The evaporation system with multiple reboilers according to claim 7, characterized in that: A water valve (205) is provided at the top of the water inlet pipe (204), and the other end of the water inlet pipe (204) is fixedly connected to one side of the first diversion pipe (102).

Images