CN220176839U

CN220176839U - Water removal device for reaction process of reaction kettle

Info

Publication number: CN220176839U
Application number: CN202321489465.9U
Authority: CN
Inventors: 方志刚; 夏贵溪; 闫以瑞
Original assignee: Wuhan Shiji Pharmaceutical Co ltd
Current assignee: Wuhan Shiji Pharmaceutical Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-12-15
Anticipated expiration: 2033-06-12

Abstract

The utility model relates to the technical field related to dehydration of reaction equipment, and particularly discloses a dehydration device for a reaction process of a reaction kettle, which comprises an air outlet pipe, a reflux pipe and a condensing box, wherein the air outlet pipe and the reflux pipe are respectively communicated with the reaction kettle; the bottom of the separation box is connected with a first pipe in a penetrating way, the side wall of the separation box is connected with a second pipe in a penetrating way, and the separation box is also provided with a pressure component for pushing water in the separation box to move upwards. The utility model has the effects of realizing the full recovery of toluene and improving the reflux efficiency and the utilization efficiency of toluene.

Description

Water removal device for reaction process of reaction kettle

Technical Field

The utility model relates to the technical field related to dehydration of reaction equipment, in particular to a dehydration device for a reaction process of a reaction kettle.

Background

In the process of drug reaction or other chemical reactions in the reaction kettle, as water is boiled by evaporation when meeting heat, toluene is often used for separating water in the reaction liquid in order to better carry out evaporation of water in the reaction liquid, and the toluene is carried with water and in the water separation process, mixed gas of the toluene and water can volatilize in the reaction kettle, the toluene needs to flow back into the reaction kettle for recycling, and the water needs to be removed or recycled in time.

The existing reflux water carrying device often comprises a water pipe, a condenser and a separating bucket which are communicated with a reaction kettle, wherein after mixed gas is condensed into a liquid state, the separating bucket separates toluene from water, and as toluene is arranged at the upper layer, water flows out from the lower part of the separating bucket, and toluene can be separated by refluxing from the upper middle part of the separating bucket.

However, this separation method is easy to cause that the water flowing down from the lower part contains part of toluene, which results in reduced toluene reflux efficiency or waste, so that it is necessary to provide a water removal device capable of conveniently controlling toluene reflux.

Disclosure of Invention

In order to solve the problems of toluene water diversion, reduction in reflux efficiency in the water removal process and even waste, the utility model provides a water removal device for a reaction process of a reaction kettle.

The utility model provides a water removal device for a reaction process of a reaction kettle, which adopts the following technical scheme:

the water removing device for the reaction process of the reaction kettle comprises an air outlet pipe, a return pipe and a condensing box, wherein the air outlet pipe and the return pipe are respectively communicated with the reaction kettle;

the bottom of the separation box is connected with a first pipe in a penetrating way, the side wall of the separation box is connected with a second pipe in a penetrating way, and the separation box is also provided with a pressure component for pushing water in the separation box to move upwards.

Through adopting above-mentioned technical scheme, toluene and moisture layer to with the separator tank in, toluene flows back to reation kettle from the second pipe in, if toluene, the aqueous solution in the separator tank descends below the second pipe, through pressure assembly drive aqueous solution rise, drive toluene and move to the position again and correspond with the second pipe, realize the abundant recovery of toluene, improved toluene's utilization efficiency.

Optionally, the other end of the first pipe is connected with a recovery tank for recovering water flow;

the first pipe comprises a vertical section, a transverse section communicated with the vertical section, and at least one arched section communicated with the transverse section, wherein the height of the arched section is higher than that of the transverse section.

Through adopting above-mentioned technical scheme, the arch section of first pipe forms the intercommunication ware of buckling to form the water seal structure with the toluene in the separator, toluene is difficult to follow aqueous solution and flows down from first pipe.

Optionally, the pressure component comprises a water pump, a water inlet pipe, and a water outlet pipe, wherein one end of the water inlet pipe is communicated with the water pump, the other end of the water inlet pipe is communicated with the recovery tank, and one end of the water outlet pipe is communicated with the water pump, and the other end of the water outlet pipe is communicated with the transverse section;

the transverse section is provided with a limiting piece for limiting the water flow to flow into the recovery receiving tank.

Through adopting above-mentioned technical scheme, start the water pump and can draw back the water in the receiving tank again in the first pipe, the restriction piece is shutoff with rivers, and the water in the separator box rises this moment to toluene rises to correspond with the second pipe position, and finally package toluene can convenient backward flow.

Optionally, the first tube and the second tube are both provided with a viewing cup.

Through adopting above-mentioned technical scheme, the viewing cup can be more convenient observe toluene, the direct separation condition of water, the control backward flow process of being convenient for.

Optionally, the visual cup includes a first flange, a second flange opposite to the first flange, a glass tube with two ends fixedly connected and penetrating between the first flange and the second flange, and a connecting piece for fixedly connecting the first flange and the second flange;

the first pipe/second pipe is divided into two sections, and the two sections of the first pipe/second pipe are respectively connected with the first flange plate and the second flange plate.

Through adopting above-mentioned technical scheme, first ring flange and second ring flange can be firm install on first pipe or second pipe to communicate glass pipe and first pipe or second pipe respectively, thereby be convenient for the staff observe.

Optionally, the connecting piece is the bolt, offer on the first ring flange with the screw of bolt screw thread adaptation, the bolt from the second ring flange is worn out the back with screw threaded connection.

Through adopting above-mentioned technical scheme, bolted connection is convenient to connect the reliability height.

Optionally, a plurality of valves are respectively installed on the first pipe and the second pipe.

Through adopting above-mentioned technical scheme, the circulation or the shutoff of solution in each pipeline of more convenient control of valve, when not needing the backward flow close corresponding valve can.

Optionally, an air inlet pipe is communicated with the separation box, and a valve is also arranged on the air inlet pipe.

Through adopting above-mentioned technical scheme, the intake pipe possesses and keeps the interior atmospheric pressure balance of separator box, reduces because atmospheric pressure makes the phenomenon that solution is difficult to decline, improves separation efficiency.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. toluene and water are layered into a separation box, toluene flows back into the reaction kettle from the second pipe, if toluene and water solution in the separation box fall below the second pipe, the water solution is driven to rise through a pressure assembly, the toluene is driven to move to a position corresponding to the second pipe again, the full recovery of toluene is realized, and the utilization efficiency of toluene is improved;

2. the arched section of the first pipe forms a bent communicating vessel, so that toluene in the separator forms a water seal structure, and the toluene cannot easily flow down from the first pipe along with the aqueous solution;

3. the visual cup can observe the direct separation condition of toluene and water more conveniently, and is convenient for controlling the reflux process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic diagram showing the structure of a junction of a view cup and a separation box;

reference numerals: 1. an air outlet pipe; 2. a return pipe; 21. a second tube; 3. a condensing box; 31. returning to the receiving tank; 4. a separation box; 5. a first tube; 51. a vertical section; 52. a transverse section; 53. an arch segment; 6. a pressure assembly; 61. a water pump; 62. a water inlet pipe; 63. a water outlet pipe; 7. a valve; 8. an air inlet pipe; 9. a viewing cup; 91. a first flange; 911. a screw hole; 92. a second flange; 93. a glass tube; 94. a connecting piece; 10. and (3) a reaction kettle.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-2.

The embodiment of the utility model discloses a water removal device for a reaction process of a reaction kettle. Referring to fig. 1 and 2, the water removing device for the reaction process of the reaction kettle comprises an air outlet pipe 1, a return pipe 2, a condensing box 3 and a separation box 4, wherein a first pipe 5 is connected to the bottom of the separation box 4 in a penetrating way, a second pipe 21 is connected to the side wall of the separation box in a penetrating way, and a pressure component 6 for pushing water in the separation box 4 to move upwards is further arranged on the separation box 4.

The gas outlet pipe 1, the back flow pipe 2 and the reactor 10 top communicate respectively, and gas outlet pipe 1 is used for the mixed gas to flow out, and the condensing tank 3 sets up between gas outlet pipe 1 and back flow pipe 2, and separator 4 sets up in the lower part of condensing tank 3 and communicates with it, forms solution and flows into separator 4 after the condenser condensation liquefaction, because the density is different, toluene is on the aqueous solution top layer to toluene can flow back into reactor 10 from the second pipe 21, and water flows out from first pipe 5.

In order to save energy consumption, a recovery tank 31 for recovering water flow is provided in the present embodiment, and the other end of the first pipe 5 is communicated with the recovery tank 31.

Because water and toluene are mixed to a certain extent in the process of dripping from the condenser to the separation tank 4, if the water flow speed is high, part of toluene is easy to carry away, so that the first pipe 5 is bent to form a water seal structure, and the flow of toluene can be effectively blocked.

Specifically, the first pipe 5 comprises a vertical section 51, a transverse section 52 communicating with the vertical section 51, at least one arched section 53 communicating with the transverse section 52, the arched section 53 being higher than the transverse section 52; preferably, the height of the highest point of the pipe of the arched section 53 can be set between the bottom of the separation tank 4 and the second pipe 21 so that toluene does not easily overflow along the first pipe 5 and even flow back into the receiving tank 31.

The pressure assembly 6 may be provided as an air pump in communication with the transverse section 52, but when an air pump is selected, the radial dimensions of the first tube 5 and the separator tank 4 should be close.

The pressure component 6 can also be a water pump 61, a water inlet pipe 62 and a water outlet pipe 63; the pressure assembly 6 in this embodiment includes a water pump 61, a water inlet pipe 62 having one end communicating with the water pump 61 and the other end communicating with the recovery tank 31, a water outlet pipe 63 having one end communicating with the water pump 61 and the other end communicating with the lateral section 52, and a restriction member for restricting the flow of water into the recovery tank 31 is provided on the lateral section 52; the restriction may be a ball valve, butterfly valve, flow regulator, or the like.

When the limiting member is closed, the transverse section 52 close to the return receiving tank 31 is blocked, so that water discharged from the water outlet pipe 63 flows into the separation tank 4, the water level in the separation tank 4 rises, and toluene solution on the water can flow from the return pipe 2 into the reaction kettle 10.

Of course, since the flowing aqueous solution and toluene solution need to be controlled correspondingly (for example, toluene solution does not need to flow into the reaction kettle 10 after being separated and needs to be removed from the reaction kettle 10 and collected), the first pipe 5 and the second pipe 21 are respectively provided with a plurality of valves 7, and the valves 7 can be arranged at different positions of the first pipe 5 and the second pipe 21 according to the requirement, for example, the flow pipe in the embodiment is of a deformed T-shaped structure, and the control of the toluene flow direction can be realized by controlling the mounting positions of the valves 7 and opening and closing the different valves 7.

In order to balance the air pressure, the separation tank 4 is further connected with an air inlet pipe 8, and a valve 7 (not shown) is also mounted on the air inlet pipe 8.

In addition, in order to facilitate observation of the separated state, the first tube 5 and the second tube 21 are each provided with an vision cup 9.

The viewing cup 9 includes a first flange 91, a second flange 92 opposite to the first flange 91, a glass tube 93 fixedly connected to both ends of the second flange 92 and penetrating the first flange 91 and the second flange 92, and a connecting member 94 for fixedly connecting the first flange 91 and the second flange 92.

The first tube 5/second tube 21 is divided into two sections at the position where the viewing cup 9 is mounted, and the two sections of the first tube 5/second tube 21 are respectively connected with the first flange 91 and the second flange 92.

The connection 94 may be a bar welded between the first flange 91 and the second flange 92; for easy disassembly, the connecting piece 94 may also be a bolt, the first flange 91 is provided with a screw hole 911 adapted to the screw thread of the bolt, and the bolt is threaded with the screw hole 911 after passing through the second flange 92.

The implementation principle of the water removal device for the reaction process of the reaction kettle provided by the embodiment of the utility model is as follows: the mixed gas flows out from the gas outlet pipe 1, enters the condenser for liquefaction, flows into the separation box 4 for layering, at the moment, the aqueous solution flows down from the first pipe 5, and the toluene flows back into the reaction kettle 10 from the second pipe 21, so that the water separation work is realized.

Due to the pressure assembly 6, after the restriction member bets the first pipe 5 close to the opening of the return receiving tank 31, the recovered water is pumped back into the first pipe 5, the liquid level of the separation tank 4 rises at this time, and toluene can flow back from the second pipe 21 continuously, so that the toluene flow back is more sufficient, and the toluene separation effect and efficiency are improved.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," "third," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. The terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.

The foregoing are all optional embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A water trap for reation kettle reaction process, its characterized in that: the device comprises an air outlet pipe (1), a return pipe (2) and a condensing box (3) which are respectively communicated with a reaction kettle (10), wherein the condensing box (3) is arranged between the air outlet pipe (1) and the return pipe (2), and a separation box (4) is arranged between the condensing box (3) and the return pipe (2) in a communicating manner;

the bottom of the separation box (4) is connected with a first pipe (5) in a penetrating way, the side wall of the separation box is connected with a second pipe (21) in a penetrating way, and the separation box (4) is also provided with a pressure component (6) for pushing water in the separation box (4) to move upwards.

2. The water removal device for a reaction process of a reaction kettle according to claim 1, wherein: the other end of the first pipe (5) is connected with a recovery tank (31) for recovering water flow;

the first pipe (5) comprises a vertical section (51), a transverse section (52) communicated with the vertical section (51), and at least one arched section (53) communicated with the transverse section (52), wherein the height of the arched section (53) is higher than that of the transverse section (52).

3. The water removal device for a reaction process of a reaction kettle according to claim 2, wherein: the pressure assembly (6) comprises a water pump (61), a water inlet pipe (62) with one end communicated with the water pump (61) and the other end communicated with the recovery receiving tank (31), and a water outlet pipe (63) with one end communicated with the water pump (61) and the other end communicated with the transverse section (52);

the transverse section (52) is provided with a restriction for restricting the flow of water into the recovery tank (31).

4. A water removal device for a reaction process of a reaction kettle according to any one of claims 1-3, wherein: and the first pipe (5) and the second pipe (21) are provided with a viewing cup (9).

5. The water removal device for a reaction process of a reaction kettle according to claim 4, wherein: the visual cup (9) comprises a first flange plate (91) and a second flange plate (92) which is arranged opposite to the first flange plate (91), a glass tube (93) with two ends fixedly connected and penetrating through the first flange plate (91) and the second flange plate (92), and a connecting piece (94) for fixedly connecting the first flange plate (91) and the second flange plate (92);

the first pipe (5)/second pipe (21) is divided into two sections, and the two sections of the first pipe (5)/second pipe (21) are respectively connected with the first flange plate (91) and the second flange plate (92).

6. The water removal device for a reaction process of a reaction kettle according to claim 5, wherein: the connecting piece (94) is a bolt, a screw hole (911) which is in threaded fit with the bolt is formed in the first flange plate (91), and the bolt is threaded with the screw hole (911) after penetrating out of the second flange plate (92).

7. A water removal device for a reaction process of a reaction kettle according to any one of claims 1-3, wherein: a plurality of valves (7) are respectively arranged on the first pipe (5) and the second pipe (21).

8. The water removal device for a reaction process of a reaction kettle according to claim 7, wherein: the separation box (4) is communicated with an air inlet pipe (8), and a valve (7) is also arranged on the air inlet pipe (8).