Reaction kettle liquid level monitoring device in MMT antiknock synthesis

Abstract

The invention discloses a reaction kettle liquid level monitoring device in MMT antiknock synthesis, and relates to the technical field of MMT antiknock synthesis, the reaction kettle liquid level monitoring device comprises a communicating pipe, the top of the communicating pipe is provided with a second connecting pipe; the partition plate is fixed in the second connecting pipe, and a plurality of through holes are formed in the side wall of the partition plate; the negative pressure pipe and the positive pressure pipe both penetrate through the inner wall of the second connecting pipe, and the negative pressure pipe and the positive pressure pipe are located on the two sides of the partition plate; the sealing assembly is arranged in the second connecting pipe, and the sealing assembly is used for sealing the partition plate; the adjusting assembly is arranged at the end of the negative pressure pipe. When the gas conveying assembly works, gas, located on one side of the partition plate and in the reaction kettle, in the second connecting pipe can be pumped out and injected into the sealing assembly through the adjusting assembly to seal the second connecting pipe, so that the gas enters the communicating pipe, and then materials in the communicating pipe are pressed back into the reaction kettle; and the materials in the communicating pipe can participate in the reaction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of MMT antiknock agent synthesis, and particularly relates to a reaction kettle liquid level monitoring device in MMT antiknock agent synthesis. BACKGROUND

[0002] MMT, Chinese name methylcyclopentadiene manganese tricarbonyl, is a manganese-based antiknock additive used in unleaded gasoline, and its main function is to improve the octane number of gasoline and prevent engine knock, and the addition ratio in gasoline is about one ten-thousandth. Since the oxidation of manganese may be generated after gasoline combustion, potential influence is caused on engine parts (such as spark plug, oxygen sensor, three-way catalyst), and it is currently the only type of antiknock additive allowed to be used in the Chinese national gasoline standard (GB17930-2006), and is mainly used for oil refineries to make up for the deficiency of the octane number of base gasoline.

[0003] The synthesis process of MMT mainly includes a "high-temperature and high-pressure two-step method", a "normal temperature and normal pressure two-step method" and a "high-temperature and high-pressure one-step synthesis method", and the required raw materials are slightly different in different process routes, but the core raw materials are basically the same. One of the core raw materials is carbon monoxide gas, which is coordinated with a manganese center atom to form a tricarbonyl structure. Therefore, high-pressure carbon monoxide gas is usually introduced during synthesis.

[0004] In the synthesis process of MMT (methylcyclopentadiene manganese tricarbonyl) which involves high-risk materials (metallic sodium, carbon monoxide) and high temperature and high pressure, the purpose of liquid level detection is very important. It can not only prevent fire, poisoning of personnel and environmental pollution caused by overflow, but also can prevent mechanical damage and damage to the reaction kettle caused by dry kettle.

[0005] In the synthesis process of MMT antiknock agent, a liquid level meter is generally arranged in the reaction kettle, and a control system is connected. In addition, the liquid level in the reaction kettle needs to be observed at any time during the synthesis process. Therefore, a magnetic float liquid level meter is usually provided. In the working process of the magnetic float liquid level meter in the prior art, the material in the reaction kettle needs to enter the magnetic float liquid level meter, which causes the material in the magnetic float liquid level meter to be unable to be fully reacted. Since the addition amount of the material needs to be accurately controlled in the synthesis of MMT antiknock agent, the error exists in the synthesis process of MMT antiknock agent due to the fact that the material in the magnetic float liquid level meter cannot be fully reacted. In addition, after synthesis, the toxic gas remaining in the reaction kettle is also left in the magnetic float liquid level meter. When the reaction kettle is opened, the toxic gas is scattered to the surrounding environment, which causes poisoning of personnel. SUMMARY

[0006] The present application aims to provide a reaction kettle liquid level monitoring device in MMT antiknock agent synthesis to solve the technical problems in the prior art.

[0007] The application provides a reaction kettle liquid level monitoring device in MMT antiknock agent synthesis. A communication pipe is provided with a second connecting pipe at the top; A partition plate is fixed in the second connecting pipe, and a plurality of through holes are formed in the side wall of the partition plate; A negative pressure pipe and a positive pressure pipe are both penetrated through the inner wall of the second connecting pipe, and the negative pressure pipe and the positive pressure pipe are located on both sides of the partition plate; A sealing assembly is arranged in the second connecting pipe, and the sealing assembly is used for sealing the partition plate; An adjusting assembly is arranged at the end of the negative pressure pipe; A gas conveying assembly is communicated with the adjusting assembly, and the gas conveying assembly is communicated with the positive pressure pipe.

[0008] Preferably, the sealing assembly comprises: A fixing frame is fixed in the second connecting pipe; A sleeve is fixed with the fixing frame; A sleeve rod is slidingly arranged at the end of the sleeve; A sealing plate is arranged at the end of the sleeve rod.

[0009] Preferably, the application further comprises: A plurality of plugs are fixed on the side wall of the sealing plate, and the plurality of sealing plates and the plurality of through holes are one-to-one corresponding.

[0010] Preferably, the application further comprises: A piston is slidingly arranged in the sleeve; A spring is fixed on the inner wall of the sleeve, and the spring is fixed with the piston.

[0011] Preferably, the application further comprises: A plurality of round holes are all penetrated through the side wall of the sleeve.

[0012] Preferably, the adjusting assembly comprises: An adjusting seat is communicated with the negative pressure pipe; A pipe body is penetrated through and arranged on the side wall of the adjusting seat; A sealing seat is slidingly arranged on the inner wall of the adjusting seat; A one-way valve is penetrated through and arranged at the bottom of the side wall of the adjusting seat.

[0013] Preferably, the application further comprises: A connecting block is fixed with the sealing seat, and a threaded hole is formed at the top of the connecting block; A screw rod is rotationally arranged on the inner wall of the adjusting seat and penetrates the threaded hole.

[0014] Preferably, the adjusting seat further comprises: A knob is rotationally arranged on the bottom of the adjusting seat, and the knob and the screw rod are fixed.

[0015] Preferably, the gas conveying assembly comprises: A gas pump box is fixed with the communication pipe, and a gas pump is arranged in the gas pump box. The input port of the gas pump is communicated with the pipe body, and the output port of the gas pump is communicated with the positive pressure pipe.

[0016] Preferably, the adjusting seat further comprises: A first connecting pipe is arranged on the bottom of the communication pipe. A connecting plate is fixed on the side wall of the communication pipe, a plurality of magnetic flappers are rotationally arranged on the side wall of the connecting plate, and a magnetic float is arranged in the communication pipe.

[0017] Compared with the prior art, the present application has the following beneficial effects: (1) The gas conveying assembly, the second connecting pipe, the partition plate, the through hole and the sealing assembly are arranged, so that the gas on the side of the partition plate in the second connecting pipe and in the reaction kettle can be extracted when the gas conveying assembly works, and the second connecting pipe is sealed by the injection of the gas into the sealing assembly through the adjusting assembly, so that the gas enters the communication pipe, and then the material in the communication pipe is pressed back into the reaction kettle, thereby ensuring that the material in the communication pipe can fully participate in the reaction.

[0018] (2) The gas conveying assembly, the second connecting pipe, the partition plate, the through hole, the sealing assembly and the adjusting assembly are arranged, so that after synthesis, since there are toxic gases remaining in the communication pipe and the reaction kettle, at this time, the external gas is injected into the communication pipe and the reaction kettle through the work of the gas conveying assembly and the adjustment of the adjusting assembly, and the toxic gases in the reaction kettle and the communication pipe are replaced through the injection of a large amount of gas, thereby avoiding the toxic gases from being dispersed to the surrounding environment after the reaction kettle is opened. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0020] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2is a schematic view of the adjusting seat, negative pressure pipe and pipe body structure of the present application; Figure 3 is a schematic view of the second connecting pipe sectional structure of the present application; Figure 4 is a schematic view of the sleeve sectional structure of the present application; Figure 5 is a schematic view of the adjusting seat sectional structure of the present application.

[0021] Reference signs: 1, communicating pipe; 2, connecting plate; 3, magnetic flap; 4, first connecting pipe; 5, second connecting pipe; 6, air pump box; 7, negative pressure pipe; 8, adjusting seat; 9, pipe body; 10, positive pressure pipe; 11, one-way valve; 12, fixing frame; 13, sleeve; 14, partition plate; 15, through hole; 16, sealing plate; 17, round hole; 18, sleeve rod; 19, piston; 20, spring; 21, plug; 22, sealing seat; 23, connecting block; 24, screw rod; 25, knob. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, but not all the embodiments.

[0023] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.

[0024] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the following Figures 1 to 5 The embodiment of the present application provides a kind of reaction kettle liquid level monitoring device in MMT antiknock agent synthesis, comprising: Connecting pipe 1, the top of connecting pipe 1 is provided with second connecting pipe 5; Partition 14, partition 14 is fixed in second connecting pipe 5, and multiple through holes 15 are formed in the side wall of partition 14; Negative pressure pipe 7 and positive pressure pipe 10, negative pressure pipe 7 and positive pressure pipe 10 all penetrate the inner wall of second connecting pipe 5, and negative pressure pipe 7 and positive pressure pipe 10 are on the two sides of partition 14; Sealing assembly, sealing assembly is arranged in second connecting pipe 5, and sealing assembly is used to seal partition 14; Adjusting assembly, adjusting assembly is arranged at the end of negative pressure pipe 7; Gas delivery assembly, gas delivery assembly is communicated with adjusting assembly, and gas delivery assembly is communicated with positive pressure pipe 10.

[0028] When gas delivery assembly works, the gas in second connecting pipe 5 on the side of partition 14 and in the reaction kettle is extracted, and is injected into sealing assembly by adjusting assembly, second connecting pipe 5 is sealed, so that the gas enters connecting pipe 1, and then the material in connecting pipe 1 is pressed back into the reaction kettle, to ensure that the material in connecting pipe 1 can fully participate in the reaction; After synthesis, because there are toxic gases in connecting pipe 1 and the reaction kettle, at this time, by the work of gas delivery assembly and the adjustment of adjusting assembly, external gas is injected into connecting pipe 1 and the reaction kettle, and by injecting a large amount of gas, the toxic gas in the reaction kettle and connecting pipe 1 is replaced, so that the toxic gas is prevented from diffusing to the surrounding environment after the reaction kettle is opened.

[0029] Further, the sealing assembly comprises: Fixed frame 12, fixed frame 12 is fixed in second connecting pipe 5; Sleeve 13, sleeve 13 is fixed with fixed frame 12; Sleeve rod 18, sleeve rod 18 is slidingly arranged at the end of sleeve 13; Sealing plate 16, sealing plate 16 is arranged at the end of sleeve rod 18.

[0030] Further, further comprising: A plurality of plugs 21, the plurality of plugs 21 are fixed on the side wall of the sealing plate 16, and the plurality of sealing plates 16 and the plurality of through holes 15 are one-to-one corresponding.

[0031] Further, further comprising: A piston 19, the piston 19 is slidingly arranged in the sleeve 13; A spring 20, the spring 20 is fixed on the inner wall of the sleeve 13, and the spring 20 and the piston 19 are fixed.

[0032] Further, further comprising: A plurality of round holes 17, the plurality of round holes 17 are all provided on the side wall of the sleeve 13.

[0033] The gas is injected into the sleeve 13 through the positive pressure pipe 10, the gas in the sleeve 13 pushes the piston 19 to move, the piston 19 moves through the sleeve rod 18 to push the sealing plate 16 to close to the baffle 14, and the through hole 15 on the baffle 14 is sealed through the plug 21, at this time, the piston 19 moves from one side of the round hole 17 to the other side of the round hole 17, and the gas in the sleeve 13 is output through the round hole 17, because the baffle 14 is sealed, the gas in the second connecting pipe 5 enters the communication pipe 1, so as to press the material in the communication pipe 1 back into the reaction kettle through the first connecting pipe 4.

[0034] Further, the adjusting assembly comprises: An adjusting seat 8, the adjusting seat 8 is communicated with the negative pressure pipe 7; A pipe body 9, the pipe body 9 is provided on the side wall of the adjusting seat 8; A sealing seat 22, the sealing seat 22 is slidingly arranged on the inner wall of the adjusting seat 8; A one-way valve 11, the one-way valve 11 is provided on the bottom of the side wall of the adjusting seat 8.

[0035] Further, further comprising: A connecting block 23, the connecting block 23 is fixed with the sealing seat 22, and a threaded hole is formed in the top of the connecting block 23; A lead screw 24, the lead screw 24 is rotationally arranged on the inner wall of the adjusting seat 8, and the lead screw 24 penetrates through the threaded hole.

[0036] Further, further comprising: A knob 25, the knob 25 is rotationally arranged on the bottom of the adjusting seat 8, and the knob 25 is fixed with the lead screw 24.

[0037] Rotating knob 25, knob 25 rotates in the process through the screw rod 24 and the threaded hole on the connecting block 23, so that the sealing seat 22 rises, until the sealing seat 22 is between the negative pressure pipe 7 and the pipe body 9, and then the sealing of the negative pressure pipe 7 is realized through the sealing seat 22, when the air pump works, the external gas enters the adjusting seat 8 through the one-way valve 11, then enters the air pump through the pipe body 9, and finally enters the second connecting pipe 5 through the positive pressure pipe 10, so as to inject the gas in the second connecting pipe 5, the communication pipe 1 and the first connecting pipe 4 into the reaction kettle, so as to replace the toxic gas in the communication pipe 1 by air, and then avoid the toxic gas in the communication pipe 1 from escaping to the surrounding environment when the reaction kettle is opened.

[0038] Further, the gas delivery assembly comprises: The air pump box 6 is fixed with the communication pipe 1, and the air pump box 6 is provided with an air pump, the input port of the air pump is communicated with the pipe body 9, and the output port of the air pump is communicated with the positive pressure pipe 10.

[0039] Further, it further comprises: The first connecting pipe 4 is arranged at the bottom of the communication pipe 1. The connecting plate 2 is fixed on the side wall of the communication pipe 1, and the side wall of the connecting plate 2 is rotatably provided with a plurality of magnetic flaps 3, and the communication pipe 1 is provided with a magnetic float.

[0040] In the process of synthesizing MMT antiknock agent, the material in the reaction kettle enters the communication pipe 1 through the first connecting pipe 4, and is pushed up by the magnetic float under the action of buoyancy, and in the process of rising of the magnetic float, the magnetic flap 3 on the connecting plate 2 is turned over, and then according to the turning over of the magnetic flap 3 on the connecting plate 2, the liquid level of the material in the reaction kettle is directly observed.

[0041] The specific working method is: when using, the first connecting pipe 4 and the second connecting pipe 5 are fixed with the reaction kettle, and the sealing property is ensured; In the process of synthesizing MMT antiknock agent, the material in the reaction kettle enters the communication pipe 1 through the first connecting pipe 4, and is pushed up by the magnetic float under the action of buoyancy, and in the process of rising of the magnetic float, the magnetic flap 3 on the connecting plate 2 is turned over, and then according to the turning over of the magnetic flap 3 on the connecting plate 2, the liquid level of the material in the reaction kettle is directly observed. During the stirring process, the switch of the air pump is turned on periodically, when the air pump works, the gas in the second connecting pipe 5 is extracted, the gas in the second connecting pipe 5 enters the adjusting seat 8 through the negative pressure pipe 7, then enters the air pump through the pipe body 9, and finally is injected into the sleeve 13 through the positive pressure pipe 10, the gas entering the sleeve 13 pushes the piston 19 to move, when the piston 19 moves, the sealing plate 16 is pushed by the sleeve rod 18 to approach the partition plate 14, and the through hole 15 on the partition plate 14 is sealed by the plug 21, at this time, the piston 19 moves from one side of the circular hole 17 to the other side of the circular hole 17, and the gas in the sleeve 13 is output through the circular hole 17, because the partition plate 14 is sealed, the gas in the second connecting pipe 5 enters the connecting pipe 1, so as to press the material in the connecting pipe 1 back into the reaction kettle through the first connecting pipe 4; By periodic operation of the air pump, the material in the connecting pipe 1 is continuously exchanged with the reaction kettle, so as to avoid that the material in the connecting pipe 1 cannot be fully reacted; After the synthesis is completed, the exhaust port of the reaction kettle is connected with the gas treatment equipment, then the air pump is controlled to work continuously, the knob 25 is rotated again, during the rotation of the knob 25, the sealing seat 22 is lifted through the threaded hole on the screw rod 24 and the connecting block 23, until the sealing seat 22 is between the negative pressure pipe 7 and the pipe body 9, and then the sealing seat 22 seals the negative pressure pipe 7, when the air pump works, the external gas enters the adjusting seat 8 through the one-way valve 11, then enters the air pump through the pipe body 9, and finally enters the second connecting pipe 5 through the positive pressure pipe 10, so as to inject the gas in the second connecting pipe 5, the connecting pipe 1 and the first connecting pipe 4 into the reaction kettle, so as to replace the toxic gas in the connecting pipe 1 by air, and then avoid that the toxic gas in the connecting pipe 1 is diffused to the surrounding environment when the reaction kettle is opened.

[0042] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A reaction kettle liquid level monitoring device in the synthesis of MMT antiknock agent, characterized in that, The utility model relates to a kind of air pressure regulating device, including: Communication pipe (1), the second connecting pipe (5) is provided with at the top of communication pipe (1); Partition (14), the partition (14) is fixed in second connecting pipe (5), multiple through-holes (15) are opened in the side wall of partition (14); Negative pressure pipe (7) and positive pressure pipe (10), the negative pressure pipe (7) and positive pressure pipe (10) are all through the inner wall of second connecting pipe (5), and negative pressure pipe (7) and positive pressure pipe (10) are on the both sides of partition (14); Sealing assembly, the sealing assembly is arranged in second connecting pipe (5), and the sealing assembly is used to seal partition (14); Adjusting assembly, the adjusting assembly is arranged in the end of negative pressure pipe (7); Gas delivery assembly, the gas delivery assembly and adjusting assembly are communicated, and gas delivery assembly and positive pressure pipe (10) are communicated.

2. The reaction kettle liquid level monitoring device in MMT antiknock agent synthesis according to claim 1, characterized in that, The sealing assembly includes: Fixed frame (12), the fixed frame (12) is fixed in second connecting pipe (5); Sleeve (13), the sleeve (13) is fixed with fixed frame (12); Sleeve rod (18), the sleeve rod (18) is slidably arranged at the end of sleeve (13); Sealing plate (16), the sealing plate (16) is arranged at the end of sleeve rod (18).

3. The reaction kettle liquid level monitoring device in MMT antiknock agent synthesis according to claim 2, characterized in that, Further including: Multiple plugs (21), multiple the plug (21) is fixed on the side wall of sealing plate (16), and multiple sealing plate (16) and multiple through-holes (15) are one-to-one corresponding.

4. The reaction kettle liquid level monitoring device in MMT antiknock agent synthesis according to claim 2, characterized in that, Further including: Piston (19), the piston (19) is slidably arranged in sleeve (13); Spring (20), the spring (20) is fixed on the inner wall of sleeve (13), and spring (20) and piston (19) are fixed.

5. The reaction kettle liquid level monitoring device in MMT antiknock agent synthesis according to claim 2, characterized in that, Further including: Multiple round holes (17), multiple the round hole (17) is all through and is opened on the side wall of sleeve (13).

6. The reaction kettle liquid level monitoring device in MMT antiknock agent synthesis according to claim 1, characterized in that, The adjusting assembly includes: Adjusting seat (8), the adjusting seat (8) and negative pressure pipe (7) are communicated; Pipe body (9), the pipe body (9) is through and is arranged on the side wall of adjusting seat (8); Sealing seat (22), the sealing seat (22) is slidably arranged on the inner wall of adjusting seat (8); Check valve (11), the check valve (11) is through and is arranged on the bottom of the side wall of adjusting seat (8).

7. The reaction kettle liquid level monitoring device in MMT antiknock agent synthesis according to claim 6, characterized in that, Further including: Connecting block (23), the connecting block (23) and sealing seat (22) are fixed, and the connecting block (23) top is opened with threaded hole; Lead screw (24), the lead screw (24) is rotatably arranged on the inner wall of adjusting seat (8), and lead screw (24) passes through threaded hole.

8. The reaction kettle liquid level monitoring device in MMT antiknock agent synthesis according to claim 7, characterized in that, Further including: Knob (25), the knob (25) is rotatably arranged on the bottom of adjusting seat (8), and knob (25) and lead screw (24) are fixed.

9. The reaction kettle liquid level monitoring device in MMT antiknock agent synthesis according to claim 6, characterized in that, The gas delivery assembly includes: Gas pump box (6), the gas pump box (6) and communication pipe (1) are fixed, the gas pump is arranged in the gas pump box (6), the input of the gas pump and pipe body (9) are communicated, the output of the gas pump and positive pressure pipe (10) are communicated.

10. The reaction kettle liquid level monitoring device in MMT antiknock agent synthesis according to claim 1, characterized in that, Further including: First connecting pipe (4), the first connecting pipe (4) is arranged at the bottom of communication pipe (1); The utility model discloses a communication pipe, which comprises a connecting plate (2) and a communication pipe (1), wherein the connecting plate (2) is fixed on the side wall of the communication pipe (1), a plurality of magnetic flaps (3) are arranged on the side wall of the connecting plate (2) in a rotating mode, and a magnetic force float is arranged in the communication pipe (1).

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