DMDS purification rectifying tower structure

Abstract

The utility model discloses a DMDS purification rectifying tower structure which comprises a rectifying tower main body, a liquid inlet pipe, a liquid outlet pipe, a gas inlet pipe, a gas outlet pipe, a tower plate, a floating valve and an auxiliary adjusting assembly, the auxiliary adjusting assembly is arranged, and adjusting wheels and adjusting plates of an adjusting mechanism I, an adjusting mechanism II or an adjusting mechanism III are respectively adjusted in a threaded manner; and the adjusting plate drives the pressing block and the connecting rod to change and push the adjusting block to move and adjust the pressure threshold value required by the branch pipe, so that the effect of adjusting the pressure threshold value at the joint of the plurality of groups of tower plates in one direction or multiple directions is achieved, and the flooding prevention effect on the inner side of the rectifying tower main body is improved in an auxiliary manner.

Description

Technical Field

[0001] This utility model relates to the field of DMDS liquid purification technology, specifically a DMDS purification distillation column structure. Background Technology

[0002] The working principle of a DMDS purification distillation column is based on the difference in boiling points of different substances. The mixture to be separated enters the distillation column through the feed inlet and is heated by a reboiler to generate steam. The steam rises inside the column and exchanges heat and mass with the descending liquid on the trays. The components with lower boiling points evaporate and rise first, while the components with higher boiling points move downwards through the liquid. After the steam reaches the top of the column, it is cooled into liquid by a condenser. Some of the liquid is refluxed back into the column to improve separation efficiency and product purity. However, the downcomer will occupy the effective mass transfer area of ​​the trays, affecting the column's production capacity.

[0003] For example, CN202321659904.6 discloses "A plate distillation column", which increases the area at the top of the column by setting protrusions on the column plate, thereby increasing the mass transfer area, improving the mass transfer effect, and increasing the production capacity of the column.

[0004] However, during the liquid distillation reaction of DMDS liquid in a distillation column, if the rising vapor velocity in the column is too high, exceeding the maximum allowable velocity, the hydraulic pressure under the trays becomes too high, causing the liquid level in the overflow pipe to rise. This results in the liquid on the upper and lower trays merging together, or even the liquid on the lower tray surging onto the upper tray, indirectly disrupting the normal operation of the distillation column. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a DMDS purification distillation column structure that solves the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a DMDS purification distillation column structure, comprising a distillation column body, an inlet pipe, an outlet pipe, an inlet pipe, an outlet pipe, a tray, a float valve, and an auxiliary adjustment assembly. The inlet pipe is located at the top of the distillation column body. An outlet pipe, an inlet pipe, and an outlet pipe are respectively located on the left and right sides of the distillation column body. A tray is installed on the inner side of the distillation column body, and a float valve is installed on the inner side of the tray. The auxiliary adjustment assembly is installed at the middle right end of the distillation column body. The auxiliary adjustment assembly includes an adjustment mechanism one, an adjustment cylinder, an adjustment plate, an adjustment mechanism two, and an adjustment mechanism three. An adjustment cylinder is installed at the top of adjustment mechanism one, and the output end of the adjustment cylinder is connected to the middle left end of the adjustment plate. Adjustment mechanisms one, two, and three are rotatably coupled to the upper, middle, lower, and inner sides of the adjustment plate, respectively. Adjustment mechanisms one, two, and three are installed at the middle right end of the distillation column body.

[0009] Preferably, the regulating mechanism includes a regulating pipe, a regulating wheel, a pressure block, a connecting rod, a regulating spring, a regulating block, and a branch pipe. The inner side of the right end of the regulating pipe is slidably engaged with the left end of the regulating wheel. The left end of the regulating wheel is fixed to the middle of the right end of the pressure block. The left end of the pressure block is connected to the right end of the regulating block via a connecting rod. An regulating spring is sleeved on the outer side of the connecting rod. The lower side of the left end of the regulating pipe is connected to the upper end of the branch pipe. The left end of the regulating pipe is fixed to the middle of the right end of the distillation column body. The left end of the branch pipe is connected to the middle of the right end of the distillation column body.

[0010] Preferably, the regulating mechanism one, regulating mechanism two, and regulating mechanism three are arranged in the middle of the right end of the distillation column body in a vertical line so as to regulate the pressure at the connection of the two sets of trays respectively.

[0011] Preferably, the right ends of the first, second and third adjustment mechanisms are adjusted synchronously by adjusting cylinders carrying adjusting plates, which facilitates the effect of synchronously adjusting the pressure conversion at the connection of the two sets of tower plates.

[0012] Preferably, the left side of the inner side of the adjusting tube is elastically engaged with the left end of the pressure block by an adjusting spring, so as to achieve the effect of resetting the pressure plate.

[0013] Preferably, a notch is provided at the connection between the lower left end of the regulating pipe and the upper right end of the branch pipe, and the lateral length of the regulating block matches the length of the notch, so that the effect of pressure threshold switching can be changed by adjusting the position of the regulating block.

[0014] Preferably, a connecting rod is provided on the outer side of the left end of the adjusting wheel, and the outer side of the connecting rod is threaded. The middle part of the connecting rod is threaded to the inner side of the upper end of the pressure block for adjustment, thereby achieving the effect of unidirectional adjustment of the pressure threshold.

[0015] (III) Beneficial Effects

[0016] This invention provides a DMDS purification distillation column structure. It offers the following advantages: by incorporating an auxiliary adjustment component, the adjusting wheels and adjusting plates of adjusting mechanism one, adjusting mechanism two, or adjusting mechanism three are adjusted threadedly. The adjusting plate, along with the pressure block and connecting rod, changes the pressure threshold required to move the adjusting block to the branch pipe. This achieves unidirectional or multidirectional pressure threshold adjustment at the connection points of multiple trays, thereby enhancing the flood prevention effect on the inner side of the distillation column body. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the planar structure of the adjustment component of this utility model;

[0021] Figure 5 This is a schematic diagram of the three-plane structure of the adjustment mechanism of this utility model.

[0022] In the diagram: Distillation column body-1, inlet pipe-2, outlet pipe-3, gas inlet pipe-4, gas outlet pipe-5, tray-6, float valve-7, auxiliary adjustment components-8, adjustment mechanism one-81, adjustment cylinder-82, adjustment plate-83, adjustment mechanism two-84, adjustment mechanism three-85, adjustment pipe-851, adjustment wheel-852, pressure block-853, connecting rod-854, adjustment spring-855, adjustment block-856, branch pipe-857. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1 and 2This utility model provides a technical solution for the structure of a DMDS purification distillation column: a DMDS purification distillation column structure includes a distillation column body 1, a liquid inlet pipe 2, a liquid outlet pipe 3, an air inlet pipe 4, an air outlet pipe 5, a tray 6, a float valve 7, and an auxiliary adjustment component 8. The liquid inlet pipe 2 is provided at the top of the distillation column body 1, and the liquid outlet pipe 3, air inlet pipe 4, and air outlet pipe 5 are respectively provided on the left and right sides of the distillation column body 1. The tray 6 is installed on the inner side of the distillation column body 1, and the float valve 7 is installed on the inner side of the tray 6. The auxiliary adjustment component 8 is installed at the middle of the right end of the distillation column body 1.

[0025] Please see Figure 3 and 4 This utility model provides a technical solution for the structure of a DMDS purification distillation column: a DMDS purification distillation column structure, the auxiliary adjustment component 8 includes an adjustment mechanism 1 81, an adjustment cylinder 82, an adjustment plate 83, an adjustment mechanism 2 84, and an adjustment mechanism 3 85. The adjustment cylinder 82 is installed at the top of the adjustment mechanism 1 81, and the output end of the adjustment cylinder 82 is connected to the middle of the left end of the adjustment plate 83. The adjustment mechanism 1 81, the adjustment mechanism 2 84, and the adjustment mechanism 3 85 are respectively rotatably engaged with the upper, middle, lower, and inner sides of the adjustment plate 83. 81. Adjustment mechanism 2 84 and adjustment mechanism 3 85 are installed at the middle right end of the main body 1 of the distillation column. Adjustment mechanism 1 81, adjustment mechanism 2 84 and adjustment mechanism 3 85 are arranged in the middle right end of the main body 1 of the distillation column in the same vertical line so as to achieve the effect of pressure regulation at the connection of the two sets of trays 6 respectively. The right end of adjustment mechanism 1 81, adjustment mechanism 2 84 and adjustment mechanism 3 85 are adjusted synchronously by adjustment cylinder 82 with adjustment plate 83, so as to achieve the effect of synchronous adjustment of pressure conversion at the connection of the two sets of trays 6.

[0026] Please see Figure 5This utility model provides a technical solution for the structure of a DMDS purification distillation column: a DMDS purification distillation column structure, the regulating mechanism 85 includes a regulating pipe 851, a regulating wheel 852, a pressure block 853, a connecting rod 854, a regulating spring 855, a regulating block 856, and a branch pipe 857. The inner side of the right end of the regulating pipe 851 is slidably engaged with the left end of the regulating wheel 852. The left end of the regulating wheel 852 is fixed to the middle of the right end of the pressure block 853. The left end of the pressure block 853 is connected to the right end of the regulating block 856 through the connecting rod 854. The regulating spring 855 is sleeved on the outer side of the connecting rod 854. The lower side of the left end of the regulating pipe 851 is connected to the upper end of the branch pipe 857. The left end of the regulating pipe 851 is connected to the distillation column. The right middle part of the main body 1 is fixed, and the left end of the branch pipe 857 is connected to the right middle part of the distillation column main body 1. The left side of the inside of the regulating pipe 851 is elastically engaged with the left end of the pressure block 853 through the regulating spring 855, so as to achieve the effect of resetting the pressure plate 853. A notch is opened at the connection between the lower left side of the regulating pipe 851 and the upper right side of the branch pipe 857. The lateral length of the regulating block 856 matches the length of the notch, so the pressure threshold switching effect can be changed by adjusting the position of the regulating block 856. A connecting rod is provided on the outer side of the left end of the regulating wheel 852. The outer side of the connecting rod is threaded, and the middle part of the connecting rod is threaded to the inner side of the upper end of the pressure block 853 for adjustment, so as to achieve the effect of unidirectional adjustment of the pressure threshold.

[0027] In use, DMDS liquid is first fed into the inside of the main body 1 of the distillation column through the inlet pipe 2, and then the DMDS liquid is distilled through multiple sets of trays 6 in conjunction with the float valve 7.

[0028] Then, by adjusting the adjusting wheels 852 of adjusting mechanism 1 81, adjusting mechanism 2 84, or adjusting mechanism 3 85 respectively, the upper, middle, and lower inner sides of the adjusting plate 83 are respectively adjusted by threaded translation. The adjusting wheels 852 carry the adjusting plate 83 to adjust the pressure block 853 and the connecting rod 854, while changing the pressure threshold required for the branch pipe 857 to move and adjust the adjusting block 856. This achieves one-way pressure threshold adjustment at the connection of the two sets of tower plates 6 and helps to prevent DMDS liquid from flooding.

[0029] Subsequently, the regulating cylinder 82 can drive the regulating plate 83 to perform horizontal adjustment, while the regulating plate 83 simultaneously moves the regulating wheels 852 of the regulating mechanism 1 81, regulating mechanism 2 84 and regulating mechanism 3 85 to perform synchronous horizontal adjustment. This allows the regulating wheel 852 to synchronously change the position of the regulating block 856, so as to achieve multi-directional pressure threshold adjustment to synchronously prevent flooding at the connection of multiple sets of trays 6 inside the main body 1 of the distillation column.

[0030] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0031] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A DMDS purification distillation column structure, comprising a distillation column body (1), an inlet pipe (2), an outlet pipe (3), an inlet pipe (4), an outlet pipe (5), a tray (6), and a float valve (7). The top of the distillation column body (1) is provided with an inlet pipe (2), and the left and right sides of the distillation column body (1) are respectively provided with an outlet pipe (3), an inlet pipe (4), and an outlet pipe (5). The inner side of the distillation column body (1) is provided with a tray (6), and the inner side of the tray (6) is provided with a float valve (7). Its features are: It also includes an auxiliary adjustment component (8), which is installed at the middle right end of the main body of the distillation column (1). The auxiliary adjustment component (8) includes an adjustment mechanism one (81), an adjustment cylinder (82), an adjustment plate (83), an adjustment mechanism two (84), and an adjustment mechanism three (85). The adjustment cylinder (82) is installed at the top of the adjustment mechanism one (81). The output end of the adjustment cylinder (82) is connected to the middle left end of the adjustment plate (83). The adjustment mechanism one (81), adjustment mechanism two (84), and adjustment mechanism three (85) are respectively rotatably engaged with the upper, middle, lower, and inner sides of the adjustment plate (83). The adjustment mechanism one (81), adjustment mechanism two (84), and adjustment mechanism three (85) are installed at the middle right end of the main body of the distillation column (1).

2. The DMDS purification distillation column structure according to claim 1, characterized in that: The third adjustment mechanism (85) includes an adjustment tube (851), an adjustment wheel (852), a pressure block (853), a connecting rod (854), an adjustment spring (855), an adjustment block (856), and a branch tube (857). The inner side of the right end of the adjustment tube (851) is slidably engaged with the left end of the adjustment wheel (852). The left end of the adjustment wheel (852) is fixed to the middle of the right end of the pressure block (853). The pressure block (853) The left end of the regulating pipe (851) is connected to the right end of the regulating block (856) via a connecting rod (854). An adjusting spring (855) is sleeved on the outside of the connecting rod (854). The lower left end of the regulating pipe (851) is connected to the upper end of the branch pipe (857). The left end of the regulating pipe (851) is fixed to the middle of the right end of the distillation column body (1). The left end of the branch pipe (857) is connected to the middle of the right end of the distillation column body (1).

3. The DMDS purification distillation column structure according to claim 1, characterized in that: The regulating mechanism one (81), regulating mechanism two (84) and regulating mechanism three (85) are arranged in the middle of the right end of the main body of the distillation column (1) along the same vertical line.

4. The DMDS purification distillation column structure according to claim 1, characterized in that: The right ends of the first adjustment mechanism (81), the second adjustment mechanism (84), and the third adjustment mechanism (85) are adjusted synchronously with the adjustment plate (83) via the adjustment cylinder (82).

5. The DMDS purification distillation column structure according to claim 2, characterized in that: The left side of the inside of the regulating tube (851) is elastically engaged with the left end of the pressure block (853) through the regulating spring (855).

6. The DMDS purification distillation column structure according to claim 2, characterized in that: A notch is provided at the connection between the lower left side of the regulating pipe (851) and the upper right side of the branch pipe (857), and the lateral length of the regulating block (856) matches the length of the notch.

7. The DMDS purification distillation column structure according to claim 2, characterized in that: A connecting rod is provided on the outer side of the left end of the adjusting wheel (852), and a thread is provided on the outer side of the connecting rod. The middle part of the connecting rod is threaded to the inner side of the upper end of the pressure block (853) for adjustment.

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