Methanol recovery system

Abstract

The utility model relates to the technical field of methanol recovery, and discloses a methanol recovery system which comprises a box body, a support arranged at the bottom of the box body and a partition frame arranged in the box body, the partition frame divides the interior of the box body into a first recovery cavity, a second recovery cavity and a heating cavity, the heating cavity is located below the first recovery cavity and the second recovery cavity, an air outlet pipe for communicating the heating cavity with the second recovery cavity is installed on the separation frame, and a condensation plate is arranged at the top of the second recovery cavity; a liquid collecting structure is further arranged in the middle of the second recycling cavity; through the arrangement of the liquid collecting structure, not only can the rapid rising of gas be promoted, the premature scattering of the gas be avoided, the rapid condensation of the gas is facilitated, but also water drops flowing down from the condensation plate and the inner wall of the box body can be received and collected, so that the recovery effect of methanol is greatly improved, and the efficient recovery of methanol is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to methanol recovery technical field, especially in a kind of methanol recovery system. BACKGROUND

[0002] In methanol production, methanol mainly exists in three forms of liquid methanol, mist methanol and gaseous methanol, and when collecting methanol in gas, methanol is generally dissolved in water to form liquid methanol, and then liquid methanol is heated and fractionated to obtain methanol, and the methanol recovery is usually realized by using a recovery tower.

[0003] In the prior art, such as the patent with the authorized announcement number CN220360960U, a methanol recovery tower is disclosed, which can make the heated and condensed methanol drop into the inside of the collecting frame by setting a condensing plate, a heating chamber and a flow guide strip, thereby increasing the recovery efficiency of the whole recovery tower. However, when the above-mentioned recovery tower condenses water droplets formed by methanol gas, the water droplets are likely to fall along the inner wall of the tank body, and the above-mentioned recovery tower is difficult to collect the water droplets falling along the inner wall of the tank body, so that the water droplets cannot be collected by the collecting frame, thereby causing poor recovery effect of methanol and being not conducive to efficient recovery of methanol. SUMMARY

[0004] The utility model provides a kind of methanol recovery system to solve the problem that the water droplets falling along the inner wall of the tank body cannot be collected by the collecting frame in the prior art, thereby causing poor recovery effect of methanol and being not conducive to efficient recovery of methanol.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of methanol recovery system, including tank body, support installed in the bottom of the tank body and the partition frame in the tank body, the partition frame separates the inside of the tank body and forms first recovery cavity, second recovery cavity and heating cavity, the heating cavity is below first recovery cavity and second recovery cavity, the partition frame is installed with the gas outlet pipe that the heating cavity is communicated with second recovery cavity, the top of second recovery cavity is provided with condensing plate, and the bottom is provided with liquid receiving tank, and the bottom of condensing plate is bent and formed into arc surface, and the arc surface is installed with flow guide rod;

[0006] The middle part of the second recovery cavity is also provided with a liquid collecting structure, and the liquid collecting structure includes a liquid collecting disc provided with an air inlet at the bottom, a gas collecting cover is installed at the bottom of the liquid collecting disc, and a liquid collecting cavity is formed by inwardly recessing the top of the liquid collecting disc, two baffle plates in a m-shaped distribution are installed in the inside of the liquid collecting cavity, a channel for methanol gas flow is formed between the two baffle plates, and a drain hole corresponding to the liquid receiving tank is also formed in the liquid collecting disc.

[0007] Preferably, the top end of each of the two baffle plates forms a guide portion, and the top of each of the two guide portions forms an expansion portion, and the two expansion portions are in an inverted m-shaped distribution.

[0008] Preferably, a recovery tower is arranged in the first recovery cavity, and a gas inlet pipe and a water inlet pipe extending to the outside of the box are connected to one side of the recovery tower, a gas outlet pipe extending to the outside of the box is arranged at the top of the recovery tower, and a liquid outlet pipe communicating with the heating cavity is connected to the bottom of the recovery tower.

[0009] Preferably, heating elements are arranged on both sides of the inner wall of the heating cavity, and a water outlet pipe communicating with the heating cavity is connected to one side of the box.

[0010] Preferably, an agitating element is further arranged on the support, and the agitating element comprises a motor fixed on the support and a shaft rotatably arranged in the heating cavity, and a stirring rod is arranged on the shaft, and the bottom end of the shaft is connected with the main shaft of the motor.

[0011] Preferably, a sub rod is further arranged on the stirring rod, and the sub rod and one end of the stirring rod form a Y-shaped agitating part.

[0012] In the above technical solution, the technical effects and advantages of the present application are as follows:

[0013] (1) The liquid collecting structure can promote the rapid rising of the gas, avoid the early dispersion of the gas, facilitate the rapid condensation of the gas, and collect the water droplets flowing down from the condensing plate and the inner wall of the box, thereby greatly improving the recovery effect of the methanol and facilitating the efficient recovery of the methanol.

[0014] The bottom of the condensing plate is arc-shaped, which can increase the contact area between the gas and the condensing plate, thereby further accelerating the condensation of the gas and facilitating the rapid recovery of the methanol.

[0015] (2) The agitating element can agitate the solution in the heating cavity, thereby promoting the uniform heating of the solution, improving the heating efficiency of the solution, and facilitating the gasification of the solution, realizing the condensation and recovery of the methanol in the solution, and improving the recovery effect of the methanol. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a structural schematic view of the present application;

[0018] Figure 2 is an appearance view of the present application;

[0019] Figure 3 It is the structure schematic view of the liquid collecting structure of the utility model;

[0020] Figure 4 It is the perspective view of the liquid collecting structure of the utility model;

[0021] In the drawing: 1, box body; 2, recovery tower; 3, air inlet pipe; 4, water inlet pipe; 5, exhaust pipe; 6, partition frame; 7, condensing plate; 8, flow guide rod; 9, liquid collecting structure; 10, liquid receiving tank; 11, air outlet pipe; 12, heating element; 13, support; 14, shaft; 15, stirring rod; 16, auxiliary rod; 17, water outlet pipe; 18, motor;

[0022] 91, liquid collecting disc; 92, gas collecting cover; 93, drain hole; 94, baffle; 95, guide part; 96, expansion part; 97, liquid collecting cavity; 98, channel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] The utility model provides a kind of methanol recovery system as Figures 1-4 As shown in the drawing, the utility model discloses a kind of methanol recovery system, including box body 1, support 13 installed at the bottom of box body 1, and partition frame 6 in box body 1, partition frame 6 separates the inside of box body 1 and forms first recovery cavity, second recovery cavity and heating cavity, heating cavity is below first recovery cavity and second recovery cavity, outlet pipe 11 is installed on partition frame 6, which communicates heating cavity with second recovery cavity, condensing plate 7 is provided at the top of second recovery cavity, and liquid receiving tank 10 is provided at the bottom, and the bottom of condensing plate 7 is curved to form camber surface, and flow guide rod 8 is installed on camber surface;

[0025] The middle part of second recovery cavity is also provided with liquid collecting structure 9, and the liquid collecting structure 9 includes liquid collecting disc 91 with air inlet at the bottom, and the bottom of liquid collecting disc 91 is provided with gas collecting cover 92, and the top of liquid collecting disc 91 is inwardly recessed to form liquid collecting cavity 97, two baffles 94 are installed in the inside of liquid collecting cavity 97, and the channel 98 for methanol gas flow is formed between the two baffles 94, and drain hole 93 corresponding to liquid receiving tank 10 is also provided on liquid collecting disc 91.

[0026] Specifically, the first recovery cavity is provided with a recovery tower 2, one side of the recovery tower 2 is connected with an air inlet pipe 3 and a water inlet pipe 4 extending to the outside of the box body 1, the top of the recovery tower 2 is provided with an air outlet pipe 5 extending to the outside of the box body 1, and the bottom of the recovery tower 2 is connected with a liquid outlet pipe communicating with the heating cavity.

[0027] Specifically, the inner wall of the heating cavity is provided with a heating element 12 on both sides, one side of the box body 1 is connected with a water outlet pipe 17 communicating with the heating cavity, and the heating element 12 can be an electric heating pipe or an electric heating wire.

[0028] When recovering methanol, the methanol mixed gas can be input into the recovery tower 2 through the air inlet pipe 3, and an appropriate amount of desalted water can be input into the recovery tower 2 through the water inlet pipe 4, the desalted water flows from top to bottom in the inside of the recovery tower 2, and the mixed gas flows from bottom to top in the inside of the recovery tower 2, and the gas is absorbed and separated by the recovery tower 2, then the gas is discharged through the air outlet pipe 5 at the top of the recovery tower 2, and the liquid is discharged into the heating cavity through the liquid outlet pipe, at this time, the liquid is heated by the heating element 12 to make the liquid vaporize and be discharged into the second recovery cavity through the air outlet pipe 11 and rise, then the gas is gathered and guided by the gas collecting cover 92 to make the gas continue to rise, and then the gas rises quickly along the channel 98 under the action of the baffle 94 to promote the gas to contact and condense on the condensing plate 7, then part of the water droplets condensed form can fall into the liquid collecting cavity 97 in the liquid collecting disc 91 along the guide rod 8, and then be discharged into the liquid receiving tank 10 under the action of the drain hole 93, so as to complete the recovery treatment of methanol.

[0029] It should be noted that the structure and principle of the recovery tower 2 in the embodiment are prior art, and specific reference can be made to the comparison file (authorized publication number: CN220360960U, name: methanol recovery tower), which will not be repeated here.

[0030] Further, as shown in Figure 1 , Figure 3 and Figure 4 , the top end of each of the two baffles 94 forms a guide portion 95, and the top of each of the two guide portions 95 forms an expansion portion 96, and the two expansion portions 96 are in inverted V-shaped distribution. Based on this, when the methanol gas flows into the channel 98 under the action of the gas collecting cover 92, the flow rate of the methanol gas increases under the action of the baffle 94, and the methanol gas can be upwardly guided by the guide portion 95 and the expansion portion 96 to avoid the methanol gas from being dispersed too early, which is conducive to promoting the methanol gas to contact and condense on the condensing plate 7 to improve the condensing effect.

[0031] In addition, in an embodiment, as shown in Figure 1 and Figure 2As shown, the stirring member is further arranged on the support 13, and the stirring member comprises a motor 18 fixed on the support 13, and a shaft 14 rotatably arranged in the heating cavity, wherein the shaft 14 is provided with a stirring rod 15, and the bottom end of the shaft 14 is connected with the main shaft of the motor 18.

[0032] During the heating process of the solution containing methanol in the heating cavity, the shaft 14 is driven to rotate by the motor 18, so that the shaft 14 drives the stirring rod 15 to rotate, thereby stirring the solution in the heating cavity, promoting the uniform heating of the solution, improving the heating efficiency of the solution, and further facilitating the gasification of the solution, realizing the condensation and recovery of the methanol in the solution, and improving the recovery effect of the methanol.

[0033] Further, in order to increase the stirring effect of the stirring rod 15, as shown, Figure 1 As shown, the stirring rod 15 is further provided with a sub rod 16, and the sub rod 16 and one end of the stirring rod 15 are both formed as a Y-shaped stirring part.

[0034] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A methanol recovery system, comprising a housing (1), a support (13) installed at the bottom of the housing (1), and a partition frame (6) disposed within the housing (1), the partition frame (6) dividing the interior of the housing (1) into a first recovery chamber, a second recovery chamber, and a heating chamber, the heating chamber being located below the first and second recovery chambers, characterized in that: The separator (6) is equipped with an exhaust pipe (11) that connects the heating chamber and the second recovery chamber. The second recovery chamber is provided with a condenser plate (7) at the top and a liquid receiving tank (10) at the bottom. The bottom of the condenser plate (7) is curved to form an arc surface, and a guide rod (8) is installed on the arc surface. The second recovery chamber is also provided with a liquid collection structure (9) in the middle, and the liquid collection structure (9) includes a liquid collection plate (91) with an air inlet at the bottom. A gas collection hood (92) is installed at the bottom of the liquid collection plate (91), and the top of the liquid collection plate (91) is recessed inward to form a liquid collection chamber (97). Two baffles (94) distributed in a figure-eight shape are installed inside the liquid collection chamber (97), and a channel (98) for methanol gas to flow is formed between the two baffles (94). A drain hole (93) corresponding to the liquid receiving tank (10) is also opened on the liquid collection plate (91).

2. The methanol recovery system according to claim 1, characterized in that: The top of each of the two baffles (94) is formed with a guide portion (95), and the top of each of the two guide portions (95) is formed with an extension portion (96), and the two extension portions (96) are distributed in an inverted V-shape.

3. The methanol recovery system according to claim 1, characterized in that: The first recovery chamber is provided with a recovery tower (2), and one side of the recovery tower (2) is connected to an air inlet pipe (3) and a water inlet pipe (4) extending to the outside of the box body (1). The top of the recovery tower (2) is equipped with an exhaust pipe (5) extending to the outside of the box body (1), and the bottom of the recovery tower (2) is connected to a drain pipe communicating with the heating chamber.

4. The methanol recovery system according to claim 1, characterized in that: Heating elements (12) are installed on both sides of the inner wall of the heating chamber, and a water outlet pipe (17) connected to the heating chamber is connected to one side of the box (1).

5. A methanol recovery system according to claim 1, characterized in that: The bracket (13) is also provided with an agitator, which includes a motor (18) fixed on the bracket (13) and a shaft (14) rotatably installed in the heating chamber. A stirring rod (15) is installed on the shaft (14), and the bottom end of the shaft (14) is connected to the main shaft of the motor (18).

6. A methanol recovery system according to claim 5, characterized in that: The stirring rod (15) is also provided with a secondary rod (16), and one end of the secondary rod (16) and the stirring rod (15) both form a Y-shaped stirring part.

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