Monochloroacetone rectifying tower with temperature control function

Abstract

The utility model relates to the technical field of rectifying towers, and discloses a monochloroacetone rectifying tower with a temperature control function, which comprises a rectifying tower body, the top of the rectifying tower body is fixedly connected with an air outlet pipe, the bottom of the rectifying tower body is fixedly connected with a discharging pipe, and the outer wall of the rectifying tower body is fixedly connected with a feeding pipe. An air inlet pipe is fixedly connected to the outer wall of the rectifying tower body, a return pipe is fixedly connected to the outer wall of the rectifying tower body, a tower plate is arranged in the rectifying tower body, and a rectifying assembly is arranged at the top of the tower plate; the rectification assembly comprises a first limiting column. According to the monochloroacetone rectifying tower, when steam is sprayed out through the air outlet, the float valve can be driven to rotate, so that the contact area and the fusion degree with liquid are improved, the contact between the clamping seat and the liquid is improved through gas-phase rotation, and the problem that when the gas phase and the liquid are mixed in the monochloroacetone rectifying tower, the standing time is too short, and the rectifying efficiency is low is solved; and the rectification efficiency of the monochloroacetone rectification tower is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rectifying tower technical field especially relates to a monochloroacetone rectifying tower with temperature control function. BACKGROUND

[0002] Because monochloroacetone has certain volatility and corrosivity, therefore the equipment performance requirement used in its purification process is higher, in order to ensure the purity of monochloroacetone product, usually needs to adopt the method of rectification to separate and purify it, and in order to better control the input and distribution of heat in the rectification process, the rectifying tower with temperature control function is gradually developed in current technology, by reasonably adjusting the temperature of different segments in the tower, the effective improvement of monochloroacetone distillation efficiency is realized, and the stability and safety of rectification process are ensured.

[0003] Through the retrieval in the announcement no. CN217472744U disclosed a kind of production m-chloroacetophenone with rectifying tower, it is related to rectifying tower field, including rectifying tower main body, discharge pipe, air pipe, reflux pipe, feed pipe and tray, overflow weir is fixedly connected with tray main body top one side, overflow weir is equipped with two groups and symmetrically arranged in tray main body top two sides, third opening is formed in tray main body top one side, the rectifying tower main body one side middle part is equipped with first opening, first opening is fixedly connected with feed pipe, the rectifying tower main body other side top is equipped with second opening, second opening is fixedly connected with reflux pipe, rectifying tower main body inside is fixedly connected with tray, tray is equipped with multiple groups and is fixed by mutual splicing, rectifying tower main body other side bottom is fixedly connected with air inlet pipe, in the application, only solve when using, liquid enters rectifying tower main body by feed pipe, air inlet pipe cooperates air pipe to form air flow passage, after distillation, it is discharged outward by discharge pipe, and the problem that residence time is too short to cause rectification efficiency to be lower when monochloroacetone rectifying tower is mixed in gas phase and liquid is not solved. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a kind of monochloroacetone rectifying tower with temperature control function, to improve the problem that residence time is too short to cause rectification efficiency to be lower when monochloroacetone rectifying tower is mixed in gas phase and liquid.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: a kind of monochloroacetone rectifying tower with temperature control function, including rectifying tower body, the rectifying tower body top is fixedly connected with air pipe, the rectifying tower body bottom is fixedly connected with discharge pipe, the rectifying tower body outer wall is fixedly connected with feed pipe, the rectifying tower body outer wall is fixedly connected with air inlet pipe, the rectifying tower body outer wall is fixedly connected with reflux pipe, the rectifying tower body inside is provided with tray, and the tray top is provided with rectification component;

[0006] The rectification assembly includes a limiting column one, the bottom of the limiting column one is fixedly connected in the tower plate, a through hole is formed in the tower plate, a limiting column two is slidably connected in the limiting column one, a float valve is rotatably connected to the top of the limiting column two, a gas outlet is formed in the float valve, the gas outlet is arranged at 45° with the float valve, an overflow groove is arranged between the tower plate and the float valve, a reset assembly is arranged on the outer wall of the limiting column two, and an overflow assembly is arranged on the top of the tower plate.

[0007] As a further description of the above technical solutions:

[0008] The reset assembly includes a spring, the spring is sleeved on the outer wall of the limiting column two, one end of the spring is fixedly connected to the bottom of the limiting column two, and the other end of the spring is fixedly connected to the inside of the limiting column one.

[0009] As a further description of the above technical solutions:

[0010] The overflow assembly includes an overflow weir, the bottom of the overflow weir is fixedly connected to the top of the tower plate, and a downcomer is fixedly connected to the inside of the tower plate.

[0011] As a further description of the above technical solutions:

[0012] The inside of the rectification tower body is fixedly connected with a mounting bracket, and the bottom of the tower plate is attached to the top of the mounting bracket.

[0013] As a further description of the above technical solutions:

[0014] The tower plate and the inside of the mounting bracket are both provided with a connecting pin, and the inside of the mounting bracket is provided with a clamping groove.

[0015] As a further description of the above technical solutions:

[0016] The inside of the connecting pin is slidably connected with a steel ball, and the steel ball is embedded in the clamping groove.

[0017] As a further description of the above technical solutions:

[0018] The inside of the connecting pin is threadedly connected with a bolt, and the top of the bolt is fixedly connected with a knob.

[0019] As a further description of the above technical solutions:

[0020] The bottom of the bolt is fixedly connected with a conical column, and the conical column is attached to the steel ball.

[0021] The utility model has the advantages of the following:

[0022] 1. The utility model discloses a floating valve is supported through the tension of spring, can be close to the tower plate of floating valve and improve the steam pressure, reached the clamping seat through the contact of gas phase rotation and liquid, solved the problem that the rectification efficiency is lower when the monochloropropane ketone rectification tower is in gas phase and liquid mixture, improved the rectification efficiency of monochloropropane ketone rectification tower.

[0023] 2. The utility model discloses a rotating knob drives bolt to rotate in the connecting pin, then bolt separates with the outer wall of steel ball through the taper column, and then makes steel ball to have the sliding retracting in the connecting pin in the connecting pin, and then steel ball separates with the clamping groove, reached the effect that the tower plate is quickly disassembled, solved the problem that the tower plate in the rectification tower is maintained, improved the maintenance convenience of rectification tower. DRAWINGS

[0024] Figure 1 It is the perspective drawing of the monochloropropane ketone rectification tower with temperature control function that the utility model proposes;

[0025] Figure 2 It is the internal structure schematic diagram of the rectification tower body of the monochloropropane ketone rectification tower with temperature control function that the utility model proposes;

[0026] Figure 3 It is the internal structure schematic diagram of the tower plate of the monochloropropane ketone rectification tower with temperature control function that the utility model proposes;

[0027] Figure 4 It is the internal structure schematic diagram of the floating valve of the monochloropropane ketone rectification tower with temperature control function that the utility model proposes;

[0028] Figure 5 It is Figure 3 The local amplification structure schematic diagram of A place in the utility model.

[0029] Legend:

[0030] 1, rectification tower body, 2, feed pipe, 3, discharge pipe, 4, gas outlet pipe, 5, inlet pipe, 6, reflux pipe, 7, tower plate, 8, mounting bracket, 9, overflow weir, 10, downcomer, 11, through -hole, 12, limit post no. 1, 13, limit post no. 2, 14, floating valve, 15, gas outlet, 16, clamping groove, 17, connecting pin, 18, bolt, 19, knob, 20, taper column, 21, steel ball, 22, spring, 23, overflow tank. DETAILED DESCRIPTION

[0031] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Embodiment one

[0032] With reference to Figures 1-4 The present application provides an embodiment: a monochloropropane ketone rectifying tower with temperature control function, comprising a rectifying tower body 1, which is used for rectifying separation treatment of monochloropropane ketone material; the rectifying tower body 1 is fixedly connected with an air outlet pipe 4 at the top, which is used for discharging gas phase components generated in the rectifying process; the rectifying tower body 1 is fixedly connected with a discharge pipe 3 at the bottom, which is used for discharging liquid phase components after rectification; the rectifying tower body 1 is fixedly connected with a feed pipe 2 on the outer wall, which is used for guiding monochloropropane ketone raw materials to be treated into the tower; the rectifying tower body 1 is fixedly connected with an air inlet pipe 5 on the outer wall, which is used for guiding auxiliary steam to improve the temperature and gas phase concentration in the tower; the rectifying tower body 1 is fixedly connected with a reflux pipe 6 on the outer wall, which is used for guiding condensed reflux liquid back to the tower to maintain the liquid phase balance in the tower; the rectifying tower body 1 is internally provided with a tower plate 7, which is used for supporting liquid phase flow and enhancing the gas-liquid contact area; the tower plate 7 is provided with a rectifying assembly at the top, which is used for improving the rectifying efficiency;

[0033] The rectification assembly comprises a limiting column 12 fixedly connected at the bottom in the tray 7, used for providing initial guiding and supporting for the float valve 14, the tray 7 is provided with a through hole 11 for providing a passing channel for the limiting column 12 and ensuring smooth flow of gas and liquid, the limiting column 12 is slidably connected with a limiting column 13 inside, the limiting column 13 can slide up and down in the limiting column 12 to realize pressure adjustment of the float valve 14, the limiting column 13 is rotatably connected with the float valve 14 at the top, the float valve 14 is used for adjusting gas flow and assisting gas-liquid mixing, the float valve 14 is provided with a gas outlet 15 inside, the gas outlet 15 is used for guiding gas phase fluid to spray out, the gas outlet 15 is arranged at 45° with the float valve 14, which can effectively increase the tangential component of the gas flow to drive the float valve 14 to rotate, the tray 7 is provided with an overflow groove 23 between the tray 7 and the float valve 14, the overflow groove 23 is used for adjusting liquid overflow and assisting liquid distribution, the limiting column 13 is provided with a reset assembly on the outer wall, the reset assembly is used for providing a restoring force when the float valve 14 rotates, the tray 7 is provided with an overflow assembly at the top, the overflow assembly is used for adjusting the liquid level on the tray 7 to keep gas-liquid balance, the reset assembly comprises a spring 22 sleeved on the outer wall of the limiting column 13, used for providing an elastic restoring force of the limiting column 13 upward, one end of the spring 22 is fixedly connected at the bottom of the limiting column 13, used for ensuring stable installation of the spring 22, the other end of the spring 22 is fixedly connected in the limiting column 12, used for stabilizing the structure of the reset assembly, the overflow assembly comprises an overflow weir 9 fixedly connected at the top of the tray 7, used for realizing automatic overflow adjustment of the liquid phase, the tray 7 is fixedly connected with a downcomer 10 inside, the downcomer 10 is used for guiding overflow liquid to flow back to the area below the tray 7 to ensure uniform distribution of liquid in the tower, the rectification tower body 1 is provided with a plurality of temperature sensors inside, which can detect the temperature of different areas in the rectification tower body 1 in real time, thereby being able to control the steam to adjust the temperature in the rectification tower body 1. Example two

[0034] With reference to Figure 3 And Figure 5The utility model provides another embodiment provided by the utility model discloses: rectifying tower body 1 inside fixedly connected with mounting bracket 8, and mounting bracket 8 is used to provide stable installation support for tray 7, to ensure the fixity and operating stability of each component in rectification process. The bottom of tray 7 is attached to the top of mounting bracket 8, and the attachment of tray 7 and mounting bracket 8 effectively prevents tray 7 from shaking or deviating during use. Both tray 7 and mounting bracket 8 are provided with connecting pin 17, which is used to realize the mechanical connection between tray 7 and mounting bracket 8, further improve the firmness and reliability of the overall structure. The mounting bracket 8 is provided with a clamping groove 16, and the clamping groove 16 is used to provide a positioning slot for the steel ball 21, so as to realize the stable positioning of the connecting pin 17. The steel ball 21 is slidably connected in the connecting pin 17, and the self-locking effect of the steel ball 21 can be realized by cooperating with the clamping groove 16, so as to avoid the loosening or falling of the connecting pin 17 during use. The steel ball 21 is embedded in the clamping groove 16, and the embedded cooperation of the steel ball 21 and the clamping groove 16 effectively enhances the installation stability of the tray 7 and improves the overall use safety of the equipment. The connecting pin 17 is internally threaded with a bolt 18, and the bolt 18 is threaded with the connecting pin 17, which realizes the axial compression of the steel ball 21, so as to ensure the close combination of the steel ball 21 and the clamping groove 16. The top of the bolt 18 is fixedly connected with a knob 19, which is convenient for the operator to manually adjust or disassemble the bolt 18, and realizes convenient maintenance and installation. The bottom of the bolt 18 is fixedly connected with a tapered column 20, which is used to apply axial thrust to the steel ball 21, so that the steel ball 21 is tightly fitted in the clamping groove 16. The tapered column 20 is attached to the steel ball 21, and the cooperation of the tapered column 20 and the steel ball 21 can effectively realize the stable fixation of the connecting pin 17, and ensure the stability of the connecting structure of the tray 7 and the mounting bracket 8.

[0035] Working principle: when using the monochloropropane ketone rectifying tower with temperature control function, first, the raw material enters the rectifying tower body 1 through the feed pipe 2, then the steam enters the rectifying tower body 1 through the gas inlet pipe 5, then the steam passes through the through hole 11 on the tray 7 and is in contact with the liquid in the overflow groove 23 and the gas outlet 15 for rough distillation, the liquid is retained at a certain height on the tray 7 by the blocking of the overflow weir 9, then the liquid is discharged through the discharge pipe 3 and enters the reflux pipe 6 to enter the rectifying tower body 1 for rectification, when the steam is sprayed out through the gas outlet 15, it can drive the float valve 14 to rotate to increase the contact area and fusion degree with the liquid, the float valve 14 is supported by the tension of the spring 22, so that the float valve 14 can tightly contact the tray 7 and improve the steam pressure, so that the clamping seat improves the contact with the liquid by gas phase rotation;

[0036] When the tower plate 7 needs to be disassembled, the knob 19 is rotated to drive the bolt 18 to rotate in the connecting pin 17, then the bolt 18 is separated from the outer wall of the steel ball 21 through the taper column 20, so that the steel ball 21 can be slidably retracted in the connecting pin 17, and then the steel ball 21 is separated from the clamping groove 16, then the connecting pin 17 is pulled out from the mounting frame 8 and the tower plate 7, and the tower plate 7 can be disassembled, thereby achieving the effect of quickly disassembling the tower plate 7.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A monochloroacetone distillation column with temperature control function, comprising a distillation column body (1), characterized in that: The distillation column body (1) is fixedly connected to the top of the gas outlet pipe (4), the bottom of the distillation column body (1) is fixedly connected to the bottom of the distillation column body (1), the outer wall of the distillation column body (1) is fixedly connected to the feed pipe (2), the outer wall of the distillation column body (1) is fixedly connected to the gas inlet pipe (5), the outer wall of the distillation column body (1) is fixedly connected to the reflux pipe (6), the inside of the distillation column body (1) is provided with a tray (7), and the top of the tray (7) is provided with a distillation assembly; The distillation assembly includes a limiting column one (12), the bottom of which is fixedly connected to the inside of the tray (7). The tray (7) has a through hole (11) inside. The limiting column one (12) is slidably connected to a limiting column two (13). The top of the limiting column two (13) is rotatably connected to a float valve (14). The float valve (14) has an outlet (15) inside. The outlet (15) is set at 45° with the float valve (14). An overflow groove (23) is provided between the tray (7) and the float valve (14). A reset component is provided on the outer wall of the limiting column two (13). An overflow component is provided on the top of the tray (7).

2. The monochloroacetone distillation column with temperature control function according to claim 1, characterized in that: The reset assembly includes a spring (22), which is sleeved on the outer wall of the second limiting post (13). One end of the spring (22) is fixedly connected to the bottom of the second limiting post (13), and the other end of the spring (22) is fixedly connected to the inside of the first limiting post (12).

3. A monochloroacetone distillation column with temperature control function according to claim 1, characterized in that: The overflow assembly includes an overflow weir (9), the bottom of which is fixedly connected to the top of the tray (7), and a downcomer (10) is fixedly connected inside the tray (7).

4. A monochloroacetone distillation column with temperature control function according to claim 1, characterized in that: The distillation column body (1) is fixedly connected to an installation frame (8), and the bottom of the column plate (7) is attached to the top of the installation frame (8).

5. A monochloroacetone distillation column with temperature control function according to claim 1, characterized in that: Both the tower plate (7) and the mounting bracket (8) are provided with connecting pins (17), and the mounting bracket (8) is provided with a slot (16).

6. A monochloroacetone distillation column with temperature control function according to claim 5, characterized in that: A steel ball (21) is slidably connected inside the connecting pin (17), and the steel ball (21) is fitted into the slot (16).

7. A monochloroacetone distillation column with temperature control function according to claim 5, characterized in that: The connecting pin (17) is internally threaded with a bolt (18), and a knob (19) is fixedly connected to the top of the bolt (18).

8. A monochloroacetone distillation column with temperature control function according to claim 7, characterized in that: The bottom of the bolt (18) is fixedly connected to a cone (20), which is in contact with the steel ball (21).

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