A separation device for separating MTBE from liquefied gas

Abstract

The present invention relates to the technical field of MTBE separation, and in particular to a separation device for separating MTBE from liquefied gas. The device comprises a tower body, the tower body is connected with a liquid inlet pipe and a liquid discharge pipe, the tower body is connected with an exhaust pipe, a tower plate is fixedly connected in the tower body, the tower plate is provided with a plurality of sieve holes, the tower plate is provided with an overflow weir, the tower plate is provided with a through hole, the tower plate is provided with a downcomer, a plurality of sieve holes of the tower plate are all equipped with bubble caps, and a sliding plate is provided above the tower plate. The present invention continuously exchanges the upper layer liquefied gas and the lower layer liquefied gas of the sliding plate by moving the sliding plate up and down, and prevents the liquid level of the liquefied gas on the sliding plate from being flush with the height of the adjacent overflow weir, and the subsequently added liquefied gas directly flows through all the overflow weirs and falls to the bottom of the tower body, so that the MTBE in the liquefied gas is discharged from the liquid discharge pipe without being completely separated, thereby affecting the separation rate of MTBE in the liquefied gas.

Description

Technical Field

[0001] The present invention relates to the technical field of MTBE separation, and in particular to a separation device for separating MTBE from liquefied gas. Background Art

[0002] Components in liquefied petroleum gas (LPG) can be separated by distillation to purify specific compounds, such as methyl tert-butyl ether (MTBE), which has the chemical formula C5H12O and is a high-octane gasoline additive that is often used as a gasoline additive. The common separation method is to heat the liquefied gas through a bottom heat source. Since the boiling point of MTBE is significantly higher than the main components in LPG, MTBE can be separated from other components in LPG by distillation.

[0003] In the existing separator, multiple layers of tower plates with overflow weirs are vertically arranged, and float valves or bubbles are arranged on the tower plates to control the passage of rising gas and prevent the descent of liquid. The liquefied gas can only flow downward through the overflow weir. This means that after the liquid level of the liquefied gas is flush with the height of the overflow weir, the subsequently added liquefied gas will directly flow through the overflow weir, resulting in a reduction in the reaction time of the liquefied gas on the tower plates, thereby causing incomplete separation of MTBE in the liquefied gas, thereby affecting the separation rate of MTBE in the liquefied gas. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a separation device for separating MTBE from liquefied gas.

[0005] The technical implementation scheme of the present invention is: a separation device for separating MTBE from liquefied gas, comprising a tower body, the tower body is connected with a liquid inlet pipe and a liquid discharge pipe, the upper side of the tower body is connected with an exhaust pipe, a tower plate distributed in a linear array is fixedly connected in the tower body, the tower plate is provided with a plurality of sieve holes, the tower plates distributed in a linear array are all located at the lower side of the liquid inlet pipe, an overflow weir is provided on the upper side of the tower plate, the tower plate is provided with a through hole adjacent to the overflow weir, a downcomer connected with the through hole is provided on the lower side of the tower plate, a plurality of sieve holes of the tower plate are all installed with bubble caps, and the upper side of the tower plate is provided with a plurality of sieve holes of the tower plate. A sliding plate is provided which is sealed and slidable with a plurality of adjacent bubble caps, the inner wall of the tower body, the adjacent overflow weir and the adjacent downcomer, the sliding plate is provided with a plurality of through holes, the bubble caps, the inner wall of the tower body, the overflow weir and the adjacent downcomer are sealed and slidable with the adjacent sliding plate, a blocking plate is installed at the through holes of the sliding plate, the tower body is provided with a first channel which is symmetrically distributed in an arc array, the tower plate is provided with a second channel which is symmetrically distributed in an arc array, the second channel is communicated with the adjacent first channel, and a power assembly for transmitting all the sliding plates is provided on the tower body.

[0006] On this basis, further, the power assembly includes an electric-controlled telescopic rod, which is fixedly connected to the tower body, and a through hole is provided at a position of the tower body close to the electric-controlled telescopic rod. The telescopic end of the electric-controlled telescopic rod is fixedly connected to a sealing plate which is sealingly and slidably connected to the tower body, and the sealing plate is used to seal the through hole of the tower body. The sealing plate is fixedly connected to a connecting rod which is slidably connected to the through hole of the tower body, and the tower plates distributed in a linear array are all sealingly and slidably connected to the connecting rod, and the sliding plates distributed in a linear array are all fixedly connected to the connecting rod.

[0007] On this basis, further, the uppermost position of the first channel is flush with the upper side surface of the adjacent overflow weir, so as to guide the upper layer of liquefied gas flush with the upper side surface of the overflow weir to the lower layer.

[0008] On this basis, further, the bubble seal is slidably connected to a water-blocking cover, the upper side of the water-blocking cover is fixedly connected to and communicated with a shell, and the shell is fixedly connected to and communicated with symmetrically distributed gas injection pipes.

[0009] On this basis, further, a cleaning ring which fits with the adjacent bubble cap is slidably connected in the water-proof cover and is used for cleaning the holes of the bubble cap.

[0010] On this basis, further, an elastic telescopic sleeve is fixed in the water-proof cover, the telescopic end of the elastic telescopic sleeve is fixed to the adjacent cleaning ring, a limit pin is fixed in the fixed part of the elastic telescopic sleeve, a limit groove is arranged on the telescopic end of the elastic telescopic sleeve, the limit pin slides in the adjacent limit groove, and the bubble cap is rotatably connected to the adjacent cleaning ring.

[0011] On this basis, further, a protrusion is provided on the lower side of the water barrier, and the thickness of the inner side of the protrusion is consistent with the vertical height of the limiting groove, so that the sliding plate can move the adjacent elastic telescopic sleeve by squeezing the protrusion.

[0012] On this basis, further, it also includes a steam pipe, which is fixedly connected to the tower body, and the lower side of the steam pipe is connected to the external reboiler. A circulating pump located outside the tower body is installed on the steam pipe, and the steam pipe passes through all the downcomers in sequence from top to bottom. The steam pipe is provided with a plurality of groups of exhaust holes distributed in a linear array from top to bottom.

[0013] On this basis, further, the apertures of the plurality of groups of exhaust holes are increased successively from top to bottom, so as to ensure that the temperature in the tower body gradually increases from top to bottom.

[0014] On this basis, further, it also includes a rotating fan, which is rotatably connected to the liquid inlet pipe, and the rotating fan is fixedly connected to a slide frame through a rotating shaft, and a slider evenly distributed circumferentially is slidably connected in the slide frame, and the slider is fixedly connected to a flexible rope, and a sliding rod is slidably connected to a position of the tower body near the slide frame, and the flexible ropes of the slider evenly distributed circumferentially are commonly fixed to a connecting block rotatably connected to the sliding rod, and a regulating valve is installed on the steam pipe near the sliding rod, and the sliding rod is fixedly connected to a connecting frame, and the connecting frame of the sliding rod and the regulating valve are driven by a rack and pinion.

[0015] The advantages and positive effects of the present invention compared with the prior art are as follows: 1. The present invention continuously exchanges the upper layer of liquefied gas and the lower layer of liquefied gas on the sliding plate by moving the sliding plate up and down, thereby preventing the liquefied gas added subsequently from directly flowing through all overflow weirs and falling to the bottom of the tower body after the liquid level of the liquefied gas on the sliding plate is flush with the height of the adjacent overflow weir, causing the MTBE in the liquefied gas to be discharged from the drain pipe without being completely separated, thereby affecting the separation rate of MTBE in the liquefied gas;

[0016] 2. Inject hot steam into the liquefied gas through the gas injection pipeline to prevent the liquefied gas liquid from entering the holes of the bubble cap, causing the bubble cap holes to be blocked by liquid, thereby preventing the hot steam from rising through the bubble cap, thereby affecting the efficiency of separating MTBE in the liquefied gas;

[0017] 3. Directly transport hot steam to the lower side of each tower plate through the steam pipe to prevent the gas discharged from the liquefied gas on the lower sliding plate from being affected by the liquefied gas liquid on the upper layer and causing cooling, thereby reducing the separation rate of the liquefied gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a three-dimensional structural cross-sectional view of the tower body of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the downcomer of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the overflow weir of the present invention;

[0022] Figure 5 It is a three-dimensional structural cross-sectional view of the water shield and the shell of the present invention;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the electric-controlled telescopic rod, the sealing plate and the connecting rod of the present invention;

[0024] Figure 7It is an exploded view of the three-dimensional structure of the bubble cap and the water-proof cover of the present invention;

[0025] Figure 8 It is an exploded view of the three-dimensional structure of the elastic telescopic sleeve, the limiting pin and the limiting groove of the present invention;

[0026] Fig. 9 It is a schematic diagram of the three-dimensional structure of the steam pipeline of the present invention;

[0027] Fig.10 It is a three-dimensional structural schematic diagram of the regulating valve of the present invention;

[0028] Fig.11 It is a three-dimensional structural cross-sectional view of the liquid inlet pipe of the present invention.

[0029] The meanings of the reference numerals in the figure are as follows: 1-tower body, 101-liquid inlet pipe, 102-liquid discharge pipe, 103-exhaust pipe, 104-tower plate, 105-overflow weir, 106-downcomer, 107-bubble cap, 108-sliding plate, 109-blocking plate, 110-first channel, 111-second channel, 2-power assembly, 201-electrically controlled telescopic rod, 202-sealing plate, 203-connecting rod, 4-waterproof cover, 401-shell, 402-gas injection pipeline, 5-cleaning ring, 6-elastic telescopic sleeve, 601-limiting pin, 602-limiting groove, 8-steam pipeline, 801-circulating pump, 9-exhaust hole, 10-rotating fan, 1001-slide frame, 1002-sliding block, 1003-sliding rod, 1004-regulating valve. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The existing separator is vertically equipped with multiple layers of tower plates with overflow weirs. The liquefied gas can only flow downward through the overflow weir. As a result, after the liquid level of the liquefied gas is flush with the height of the overflow weir, the subsequently added liquefied gas will directly flow through the overflow weir, resulting in a reduction in the reaction time of the liquefied gas on the tower plates, thereby causing incomplete separation of MTBE in the liquefied gas, which in turn affects the separation rate of MTBE in the liquefied gas.

[0032] Example 1: A separation device for separating MTBE from liquefied gas, see Figure 1-Figure 6, comprising a tower body 1, a control panel not shown in the figure is arranged on the outside of the tower body 1, a liquid inlet pipe 101 located in the middle and a liquid discharge pipe 102 located in the lower part of the tower body 1 are connected, the tower body 1 is provided with an external injection device connected with the liquid inlet pipe 101, wherein the external injection device is not shown in the figure, an external reboiler not shown in the figure is arranged at the bottom of the tower body 1, the external injection device and the external reboiler are both electrically connected to the control panel, an exhaust pipe 103 is connected to the upper side of the tower body 1, tower plates 104 distributed in upper and lower linear arrays are fixedly connected in the tower body 1, the tower plates 104 are provided with a plurality of sieve holes, the tower plates 104 distributed in the linear array are all located at the lower side of the liquid inlet pipe 101, the tower An overflow weir 105 is arranged on the upper side of the plate 104, and the overflow weir 105 is used to control the liquid level on the upper side of the tower plate 104. The uppermost overflow weir 105 is located on the right side of the adjacent tower plate 104, the second overflow weir 105 from top to bottom is located on the left side of the adjacent tower plate 104, and the third overflow weir 105 is located on the right side of the adjacent tower plate 104. All overflow weirs 105 are staggered and distributed in this way. The tower plate 104 is provided with a through hole near the adjacent overflow weir 105, and the lower side of the tower plate 104 is provided with a downcomer 106 connected with the through hole, and a plurality of sieve holes of the tower plate 104 are installed with bubble caps 107, and the bubble caps 107 are used to control the passage of rising gas and prevent the descent of liquid. A sliding plate 108 is provided above the tower plate 104, which is sealed and slidable with a plurality of adjacent bubble caps 107, the inner wall of the tower body 1, the adjacent overflow weir 105 and the adjacent downcomer 106. A plurality of through holes are provided on the sliding plate 108, and a plurality of blocking plates 109 are installed on the upper side of the through holes of the sliding plate 108. An elastic member is fixedly connected between the sliding plate 108 and the adjacent blocking plates 109. When the sliding plate 108 moves upward, the elastic member of the blocking plate 109 is compressed by the pressure of the liquid on the upper side, so that the blocking plate 109 is closely attached to the adjacent sliding plate 108, and the through holes of the sliding plate 108 are closed. When the sliding plate 108 moves downward, the elastic member of the blocking plate 109 rebounds and recovers. The through hole of the sliding plate 108 loses its blockage and opens for circulation. The tower body 1 is provided with a first channel 110 in an arc array and symmetrically distributed. The tower plate 104 is provided with a second channel 111 in an arc array and symmetrically distributed. The uppermost position of the first channel 110 is flush with the upper side surface of the adjacent overflow weir 105, and is used to guide the upper layer of liquefied gas flush with the upper side surface of the overflow weir 105 to the lower layer. After the sliding plate 108 moves upward, the liquefied gas flows into the adjacent sliding plate 108 and the adjacent tower plate 104 through the first channel 110. The second channel 111 is connected to the adjacent first channel 110. A power component 2 for transmitting all the sliding plates 108 is provided on the tower body 1.

[0033] See also Figure 3 , Figure 4 and Figure 6The power assembly 2 includes an electric telescopic rod 201 electrically connected to the control panel, the electric telescopic rod 201 is fixedly connected to the tower body 1, a through hole is provided at a position of the tower body 1 near the electric telescopic rod 201, a sealing plate 202 is fixedly connected to the telescopic end of the electric telescopic rod 201 and is sealingly and slidably connected to the tower body 1, the sealing plate 202 is used to block the through hole of the tower body 1, the sealing plate 202 is fixedly connected to a connecting rod 203 which is slidingly connected to the through hole of the tower body 1, the sealing plate 202 is used to seal the sliding connection of the connecting rod 203 when the connecting rod 203 slides, so as to prevent liquid from seeping out through the sliding connection of the connecting rod 203, the tower plates 104 distributed in a linear array are all sealingly and slidably connected to the connecting rod 203, and the sliding plates 108 distributed in a linear array are all fixedly connected to the connecting rod 203.

[0034] See also Figure 5 and Figure 7 The bubble cap 107 is sealingly and slidably connected to the water-blocking cover 4, the upper side of the water-blocking cover 4 is fixedly connected and communicated with a shell 401, the shell 401 is fixedly connected and communicated with a symmetrically distributed gas injection pipe 402, and the connection between the gas injection pipe 402 and the adjacent shell 401 is higher than the upper side of the adjacent overflow weir 105, that is, the connection between the gas injection pipe 402 and the adjacent shell 401 is always located above the liquid surface, which is used to prevent the liquid from flowing back into the water-blocking cover 4, and the gas injection pipe 402 is provided with holes which are uniformly distributed in a circumferential direction and in a linear array, which are used to discharge steam bubbles into the liquefied gas.

[0035] See also Figure 7 A cleaning ring 5 that fits the adjacent bubble cap 107 is slidably connected inside the water-proof cover 4 and is used to clean the holes of the bubble cap 107 . The inner ring of the cleaning ring 5 is made of flexible material and is used to wipe the adjacent bubble cap 107 .

[0036] See also Figure 7 and Figure 8 An elastic telescopic sleeve 6 is fixedly connected inside the water-proof cover 4, and the telescopic end of the elastic telescopic sleeve 6 is fixedly connected to the adjacent cleaning ring 5. A limiting pin 601 is fixed inside the fixed part of the elastic telescopic sleeve 6. A limiting groove 602 is arranged on the telescopic end of the elastic telescopic sleeve 6, and the limiting groove 602 is a closed circular ring arranged at an angle. The limiting pin 601 slides in the adjacent limiting groove 602, and the upper side of the bubble 107 is rotatably connected to the lower side of the adjacent cleaning ring 5, so as to enable the cleaning ring 5 to rotate on the outer side of the adjacent bubble 107. A raised portion is arranged on the lower side of the water-proof cover 4, and the upper and lower thicknesses of the inner side of the raised portion are consistent with the vertical height of the limiting groove 602, so as to enable the sliding plate 108 to squeeze the adjacent elastic telescopic sleeve 6 through the raised portion to move. When the sliding plate 108 squeezes the raised portion of the adjacent water-proof cover 4 to move upward, the water-proof cover 4 drives the fixed portion of the adjacent elastic telescopic sleeve 6 to move upward.

[0037] When the operator needs to use the present device to separate MTBE from liquefied gas, the operator gradually injects liquid liquefied gas into the liquid inlet pipe 101 through the external injection equipment, and the liquid liquefied gas enters the tower body 1 through the liquid inlet pipe 101. The liquid liquefied gas first flows to the uppermost sliding plate 108, and then after the liquid liquefied gas is gradually injected until the liquid level exceeds the height of the uppermost overflow weir 105, the liquid liquefied gas flows through the downcomer 106 adjacent to the upper overflow weir 105 to the second sliding plate 108, and so on. After flowing through all the sliding plates 108, the liquid liquefied gas flows downward to the bottom of the tower body 1, and then the operator turns on the external reboiler through the control panel. The external reboiler heats the liquefied gas at the bottom to gradually vaporize the liquid liquefied gas, and the MTBE gas in the liquefied gas is evaporated and flows upward to the exhaust pipe 103, and the operator can collect the liquefied gas.

[0038] When the hot steam generated by the external reboiler flows upward, the hot steam enters the bubble cap 107, and then is discharged to the bottom of the liquid liquefied gas on the sliding plate 108 through the holes on the bubble cap 107, so that the rising steam can pass through the descending liquid, realizing full contact between the gas and liquid phases, thereby achieving effective mass transfer and heat transfer functions.

[0039] When the operator uses the device to separate MTBE from liquefied gas, the operator turns on the electric telescopic rod 201 through the control panel. The telescopic end of the electric telescopic rod 201 drives all the sliding plates 108 to move back and forth up and down through the sealing plate 202 and the connecting rod 203. When the sliding plate 108 moves upward, the sealing plate 109 is in a closed state. The sliding plate 108 drives the liquid liquefied gas located on its upper side to move upward, so that a part of the liquid liquefied gas on the sliding plate 108 gradually overflows from the upper side of the adjacent overflow weir 105, and then the liquid liquefied gas flows downward to the second sliding plate 108. At this time, the sliding plate 108 moves upward to form a gap with the adjacent tower plate 104, so that another part of the liquid liquefied gas on the sliding plate 108 enters the adjacent arc-shaped array and symmetrically distributed first channel 110, and then the liquefied gas enters the gap between the adjacent sliding plate 108 and the adjacent tower plate 104 through the first channel 110 and the adjacent second channel 111.

[0040] When the sliding plate 108 moves downward, the gap between the sliding plate 108 and the adjacent tower plate 104 is filled with a portion of liquid liquefied gas, and the blocking plate 109 opens to allow the liquid liquefied gas in the gap between the adjacent sliding plate 108 and the adjacent tower plate 104 to flow upward, and along with the reciprocating extension and contraction of the telescopic end of the electric control telescopic rod 201, the upper layer of liquid liquefied gas on the sliding plate 108 flows to the lower layer of liquid liquefied gas through the adjacent first channel 110, the adjacent second channel 111 and the adjacent blocking plate 109 in sequence. At the liquid liquefied gas, the upper layer of liquid liquefied gas and the lower layer of liquid liquefied gas on the sliding plate 108 are constantly exchanged to prevent the liquid liquefied gas added subsequently from not being able to stay on the sliding plate 108 after the liquid level of the liquefied gas is flush with the height of the adjacent overflow weir 105, but directly flowing through all the overflow weirs 105 and falling to the bottom of the tower body 1, resulting in the MTBE in the liquid liquefied gas being discharged from the drain pipe 102 without being completely separated, thereby affecting the separation rate of MTBE in the liquid liquefied gas.

[0041] After the hot vapor is discharged from the bottom to the top through the hole of the bubble 107, the hot vapor passes through the water-proof cover 4, the adjacent shell 401 and the two adjacent gas injection pipes 402 in turn, and the hot vapor is injected into the liquid liquefied gas through the gas injection pipes 402. The height of the shell 401 is higher than the height of the adjacent overflow weir 105, preventing the liquid liquefied gas from entering the hole of the bubble 107, causing the hole of the bubble 107 to be blocked by liquid, thereby causing the hot vapor to be unable to rise through the bubble 107, thereby affecting the efficiency of separating MTBE in the liquid liquefied gas.

[0042] When the sliding plate 108 moves upward, the sliding plate 108 gradually approaches the adjacent water-blocking covers 4. When the sliding plate 108 moves to contact with several adjacent water-blocking covers 4 at the same time, the sliding plate 108 moves and squeezes the adjacent water-blocking covers 4 to move upward. The water-blocking covers 4 drive the fixed part of the adjacent elastic telescopic sleeve 6 to move upward. The fixed part of the elastic telescopic sleeve 6 drives the adjacent limit pin 601 to move upward. The limit pin 601 moves along the adjacent limit groove 602 and squeezes the telescopic end of the adjacent elastic telescopic sleeve 6 to rotate. The telescopic end of the elastic telescopic sleeve 6 drives the adjacent cleaning ring 5 to rotate, wipes the holes of the adjacent bubbles 107, and prevents the holes of the bubbles 107 from being blocked by condensed liquefied gas.

[0043] When the operator has finished processing the liquefied gas, the operator controls the telescopic end of the electric telescopic rod 201 to reset through the control panel, and closes the electric telescopic rod 201, the external injection equipment and the external reboiler to clear the residual liquefied gas in the tower body 1, and then cleans the inside of the tower body 1 for the next use.

[0044] Example 2: Based on Example 1, please refer to Figure 2 , Fig. 9 and Fig.10, further comprising a steam pipeline 8, the steam pipeline 8 is fixedly connected to the tower body 1, the lower side of the steam pipeline 8 is communicated with the external reboiler, a circulating pump 801 located outside the tower body 1 is installed on the steam pipeline 8, the circulating pump 801 is electrically connected to the control panel, the circulating pump 801 is used to extract the steam from the lower side of the steam pipeline 8, and transport the steam to all the exhaust holes 9, the steam pipeline 8 passes through all the downcomers 106 from top to bottom in sequence, and the steam pipeline 8 is provided with a plurality of groups of exhaust holes 9 distributed in a linear array from top to bottom, The exhaust holes 9 are all located on the lower side of adjacent tower plates 104, and the openings of the exhaust holes 9 on the steam pipe 8 face downward, so that while hot steam is transported to the lower side of the tower plate 104, liquid is prevented from entering the exhaust holes 9. The apertures of several groups of exhaust holes 9 increase from top to bottom, so as to ensure that the temperature in the tower body 1 gradually increases from top to bottom, and the liquid liquefied gas added to the tower body 1 is heated step by step to avoid excessive temperature gradients that affect the volatility of the liquid liquefied gas separation gas, thereby reducing the separation efficiency.

[0045] When the operator heats the liquid liquefied gas at the bottom through the external reboiler, a part of the hot steam from the external reboiler enters the steam pipe 8, and then the operator turns on the circulation pump 801 through the control panel. The circulation pump 801 transports the hot steam in the steam pipe 8 to all the exhaust holes 9, and directly transports the hot steam to the lower side of each tower plate 104 through all the exhaust holes 9, to prevent the gas discharged from the liquid liquefied gas on the lower sliding plate 108 from being affected by the upper liquid liquefied gas and causing cooling, thereby reducing the separation rate of the liquid liquefied gas.

[0046] Example 3: Based on Example 2, please refer to Figure 3 and Figure 9-11 , also includes a rotating fan 10, the rotating fan 10 is rotatably connected to the liquid inlet pipe 101, the pipe mouth of the liquid inlet pipe 101 is a semicircular opening, which is used to synchronously drive the rotating fan 10 to rotate when the liquid enters the liquid inlet pipe 101, the rotating fan 10 is fixedly connected to a slide frame 1001 through a rotating shaft, and a slider 1002 uniformly distributed in the circumferential direction is slidably connected in the slide frame 1001, and the slider 1002 is fixedly connected with a flexible rope, and a sliding rod 1003 is slidably connected to the position of the tower body 1 near the slide frame 1001, and the flexible ropes of the slider 1002 uniformly distributed in the circumferential direction are jointly fixed with a connecting block rotatably connected to the sliding rod 1003, and a regulating valve 1004 is installed at a position of the steam pipe 8 near the sliding rod 1003, wherein the regulating valve 1004 is a ball valve. Fig.11From the perspective of, when the rack moves backward and drives the valve of the regulating valve 1004 to rotate through the gear, the flow in the regulating valve 1004 increases; when the rack moves forward and drives the valve of the regulating valve 1004 to rotate through the gear, the flow of steam in the steam pipe 8 decreases. The sliding rod 1003 is fixedly connected to a connecting frame, and the connecting frame of the sliding rod 1003 and the regulating valve 1004 are driven by gear racks.

[0047] When the liquid liquefied gas is gradually injected into the liquid inlet pipe 101 through the external injection equipment, the liquid liquefied gas flows and drives the rotating fan 10 to rotate, and the rotating fan 10 drives the slide frame 1001 to rotate through its rotating shaft. The four sliders 1002 on the slide frame 1001 are dispersed circumferentially under the influence of centrifugal force, and the sliders 1002 drive the adjacent flexible ropes to move. The four flexible ropes drive the sliding rod 1003 to move through the connecting block. The sliding rod 1003 drives the valve of the regulating valve 1004 to rotate through the connecting frame and the gear rack, and the flow rate of the regulating valve 1004 is adjusted. The steam in the steam pipe 8 is regulated according to the injection speed of the liquid inlet pipe 101. The flow rate is adjusted. When the liquid injection speed of the liquid inlet pipe 101 is fast, resulting in a fast replacement rate of the liquid and liquefied gas on the sliding plate 108, the amount of hot steam discharged to the bottom of the sliding plate 108 through the steam pipe 8 increases, thereby making the heat source closer to all the sliding plates 108. When the liquid injection speed of the liquid inlet pipe 101 is slow, resulting in a slow replacement rate of the liquid and liquefied gas on the sliding plate 108, the amount of hot steam discharged to the bottom of the sliding plate 108 through the steam pipe 8 decreases, thereby making the heat source away from all the sliding plates 108, thereby realizing adaptive adjustment of the temperature of the liquid and liquefied gas on the sliding plate 108, thereby increasing the separation rate of the liquid and liquefied gas on the sliding plate 108.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A separation device for separating MTBE from liquefied gas, comprising a tower body (1), the tower body (1) being connected to a liquid inlet pipe (101) and a liquid discharge pipe (102), the upper side of the tower body (1) being connected to an exhaust pipe (103), the tower body (1) being fixedly connected to tower plates (104) arranged in a linear array, the tower plates (104) being provided with a plurality of sieve holes, the tower plates (104) being arranged in a linear array being all located below the liquid inlet pipe (101), an overflow weir (105) being provided on the upper side of the tower plate (104), the tower plate (104) being provided with a through hole adjacent to the overflow weir (105), the lower side of the tower plate (104) being provided with a downcomer (106) connected to the through hole, and the plurality of sieve holes of the tower plate (104) being all installed with bubble caps (107), wherein the device is characterized in that: It also includes sliding plates (108) distributed in a linear array, the sliding plates (108) distributed in a linear array are all arranged above the tower plate (104), the sliding plates (108) are provided with a plurality of through holes, the bubble cap (107), the inner wall of the tower body (1), the overflow weir (105) and the adjacent downcomer (106) are all sealed and slid with the adjacent sliding plates (108), and a blocking plate (109) is installed at the through hole of the sliding plate (108), the tower body (1) is provided with first channels (110) in an arc array and symmetrically distributed, the tower plate (104) is provided with second channels (111) in an arc array and symmetrically distributed, the second channels (111) are connected to the adjacent first channels (110), and the tower body (1) is provided with a power assembly (2) for driving all the sliding plates (108); An elastic member is fixedly connected between the sliding plate (108) and the adjacent sealing plate (109). When the sliding plate (108) moves upward, the elastic member of the sealing plate (109) is compressed by the pressure of the upper liquid, so that the sealing plate (109) is tightly attached to the adjacent sliding plate (108), and the through hole of the sliding plate (108) is closed. When the sliding plate (108) moves downward, the elastic member of the sealing plate (109) rebounds and resets, and the through hole of the sliding plate (108) loses its seal and opens for circulation.

2. A separation device for separating MTBE from liquefied gas according to claim 1, characterized in that: The power assembly (2) comprises an electrically controlled telescopic rod (201), the electrically controlled telescopic rod (201) being fixedly connected to the tower body (1), a through hole being provided on the tower body (1) at a position close to the electrically controlled telescopic rod (201), a sealing plate (202) being fixedly connected to the telescopic end of the electrically controlled telescopic rod (201) being sealingly and slidably connected to the tower body (1), the sealing plate (202) being used to block the through hole of the tower body (1), the sealing plate (202) being fixedly connected to a connecting rod (203) being slidably connected to the through hole of the tower body (1), the tower plates (104) distributed in a linear array being sealingly and slidably connected to the connecting rod (203), and the sliding plates (108) distributed in a linear array being fixedly connected to the connecting rod (203).

3. A separation device for separating MTBE from liquefied gas according to claim 1, characterized in that: The uppermost position of the first channel (110) is flush with the upper side surface of the adjacent overflow weir (105), and is used to guide the upper layer of liquefied gas that is flush with the upper side surface of the overflow weir (105) to the lower layer.

4. A separation device for separating MTBE from liquefied gas according to claim 3, characterized in that: The bubble cap (107) is sealingly and slidably connected to a water-blocking cover (4); the upper side of the water-blocking cover (4) is fixedly connected to and communicated with a shell (401); and the shell (401) is fixedly connected to and communicated with symmetrically distributed gas injection pipes (402).

5. A separation device for separating MTBE from liquefied gas according to claim 4, characterized in that: A cleaning ring (5) is slidably connected inside the water-proof cover (4) and is fitted to the adjacent bubble cap (107) and is used to clean the holes of the bubble cap (107).

6. A separation device for separating MTBE from liquefied gas according to claim 5, characterized in that: An elastic telescopic sleeve (6) is fixedly connected inside the water-proof cover (4), the telescopic end of the elastic telescopic sleeve (6) is fixedly connected to the adjacent cleaning ring (5), a limiting pin (601) is fixedly connected inside the fixed portion of the elastic telescopic sleeve (6), a limiting groove (602) is arranged on the telescopic end of the elastic telescopic sleeve (6), the limiting pin (601) slides in the adjacent limiting groove (602), and the bubble cap (107) is rotationally connected to the adjacent cleaning ring (5).

7. A separation device for separating MTBE from liquefied gas according to claim 6, characterized in that: A raised portion is provided on the lower side of the water-blocking cover (4), the thickness of the inner side of the raised portion being consistent with the vertical height of the limiting groove (602), so as to enable the sliding plate (108) to move by squeezing the adjacent elastic telescopic sleeve (6) through the raised portion.

8. A separation device for separating MTBE from liquefied gas according to claim 2, characterized in that: The tower body (1) further comprises a steam pipe (8), the steam pipe (8) being fixedly connected to the tower body (1), the lower side of the steam pipe (8) being in communication with an external reboiler, the steam pipe (8) being provided with a circulation pump (801) located outside the tower body (1), the steam pipe (8) passing through all the downcomers (106) in sequence from top to bottom, and the steam pipe (8) being provided with a plurality of groups of exhaust holes (9) distributed in a linear array from top to bottom.

9. A separation device for separating MTBE from liquefied gas according to claim 8, characterized in that: The diameters of the plurality of groups of exhaust holes (9) increase sequentially from top to bottom, so as to ensure that the temperature in the tower body (1) gradually increases from top to bottom.

10. A separation device for separating MTBE from liquefied gas according to claim 8, characterized in that: The invention also comprises a rotating fan (10), wherein the rotating fan (10) is rotatably connected to the liquid inlet pipe (101), the rotating fan (10) is fixedly connected to a slide frame (1001) via a rotating shaft, a sliding block (1002) evenly distributed in the circumference is slidably connected inside the slide frame (1001), the sliding block (1002) is fixedly connected to a flexible rope, a sliding rod (1003) is slidably connected to a position of the tower body (1) close to the slide frame (1001), the flexible ropes of the sliding blocks (1002) evenly distributed in the circumference are jointly fixedly connected to a connecting block rotatably connected to the sliding rod (1003), a regulating valve (1004) is installed at a position of the steam pipe (8) close to the sliding rod (1003), the sliding rod (1003) is fixedly connected to a connecting frame, and the connecting frame of the sliding rod (1003) and the regulating valve (1004) are driven by a rack and pinion.

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