Methanol evaporator preheating device for producing methyltrimethoxysilane

Abstract

The utility model relates to the technical field of methanol evaporator preheating, and discloses a methanol evaporator preheating device for producing methyltrimethoxysilane, which comprises a methanol storage tank, an evaporator and a preheating water tank, the preheating treatment assembly comprises an inner spiral preheating coil pipe, a treatment barrel piece, a connecting block, a middle connecting block, a heat outlet pipe, an annular base, a waste heat recovery end and a tubular heat exchanger. According to the methanol evaporator preheating device for producing methyltrimethoxysilane, the steam flow and temperature balance adjusting assembly is arranged, and the functions of the pressure gauge and the temperature detection sensor are integrated, so that an operator can directly read the pressure and temperature values of steam and adjust the opening degree of the valve according to the read pressure and temperature values; the flow and pressure of steam entering the evaporator jacket are controlled, the methanol evaporation temperature can be effectively regulated and controlled, the stable preheating effect is guaranteed, and the using effect is good.

Description

Technical Field

[0001] This utility model relates to the field of methanol evaporator preheating technology, specifically a methanol evaporator preheating device for producing methyltrimethoxysilane. Background Technology

[0002] Methyltrimethoxysilane is an important organosilicon compound with wide applications in coatings, adhesives, electronic materials, and many other fields. In its production process, methanol, as a key raw material, requires pretreatment steps such as evaporation and preheating to meet the process requirements of subsequent reactions.

[0003] The prior art announcement number CN222173089U discloses a methanol evaporator preheating device for producing methyltrimethoxysilane. The evaporator body has a heat-conducting sleeve fitted inside the outer cylinder. Heat-conducting rods are symmetrically arranged outside the heat-conducting sleeve. Speed-reducing discs are also symmetrically arranged inside the outer cylinder outside the heat-conducting sleeve. A first inlet pipe and a first outlet pipe are respectively arranged from left to right on the outer side of the outer cylinder. A preheating cylinder is arranged at the outer end of the first inlet pipe. A second inlet pipe and a second outlet pipe are respectively arranged on both sides of the preheating cylinder from left to right. A heating plate is arranged inside the preheating cylinder. Heating tubes are symmetrically arranged inside the heating plate.

[0004] The aforementioned methanol evaporator preheating device for producing methyltrimethoxysilane uses a fan to draw air into the preheating cylinder. After entering, the air is filtered through a filter and heated. This heated air is then introduced into the outer cylinder to preheat the main body of the methane evaporator. However, the aforementioned methanol evaporator preheating device does not integrate pressure gauges and thermometers at the connecting pipes. Operators cannot directly read the pressure and temperature values ​​of the steam, making it impossible to effectively control the methanol evaporation temperature in a timely manner. The preheating effect is unstable, resulting in poor performance during use. Improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a methanol evaporator preheating device for the production of methyltrimethoxysilane, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A methanol evaporator preheating device for producing methyltrimethoxysilane includes a methanol storage tank, an evaporator, and a preheating water tank. The top of the methanol storage tank is equipped with a steam flow and temperature balance regulating component, and the interior of the preheating water tank is equipped with a preheating treatment component.

[0008] The steam flow and temperature balance regulating component includes a conveying regulating mechanism and a flow and temperature detection mechanism. The conveying regulating mechanism is connected to the surface of the methanol storage tank, and the flow and temperature detection mechanism is connected to the surface of the conveying regulating mechanism.

[0009] The conveying and regulating mechanism includes a connecting pipe, an intermediate connecting pipe, a preheating inlet pipe, a first control valve, a first shut-off valve, an extension connecting pipe, and a second control valve. The connecting pipe is fixedly connected to the top of the methanol storage tank. The intermediate connecting pipe is fixedly connected to the bottom of the connecting pipe near the left side. The preheating inlet pipe is fixedly connected to the bottom of the connecting pipe near the right side. The first control valve is fixedly connected to the left side of the evaporator. The first shut-off valve is fixedly connected to the bottom of the intermediate connecting pipe. The extension connecting pipe is fixedly connected to the bottom of the preheating inlet pipe. The second control valve is fixedly connected to the surface of the extension connecting pipe.

[0010] The flow and temperature detection mechanism includes a connecting frame, an extraction pipe, a second shut-off valve, a hollow storage box, a temperature detection sensor, a pressure gauge, and a connecting plate. The connecting frame is fixedly connected to the right side of the front of the intermediate connecting pipe, the hollow storage box is fixedly connected to the top of the connecting frame, the extraction pipe is fixedly connected to the front of the intermediate connecting pipe, the second shut-off valve is fixedly connected to the top of the hollow storage box and connected to the surface of the extraction pipe, the pressure gauge is fixedly connected to the back of the connecting frame, the connecting plate is fixedly connected to the top of the pressure gauge, and the temperature detection sensor is fixedly connected to the front of the connecting plate.

[0011] Preferably, the preheating treatment assembly includes an inner spiral preheating coil, a treatment cylinder, a connecting block, an intermediate connecting block, a heat outlet pipe, an annular base, a waste heat recovery end, and a shell-and-tube heat exchanger. The annular base is fixedly connected to the bottom of the preheating water tank, the treatment cylinder is fixedly connected to the top of the annular base, the connecting block is fixedly connected to the center of the top front of the treatment cylinder, the inner spiral preheating coil is fixedly connected to the inside of the connecting block, the inner ring of the inner spiral preheating coil is connected to the surface of the treatment cylinder, the shell-and-tube heat exchanger is fixedly connected to the top of the annular base, the waste heat recovery end is fixedly connected to the front of the annular base, and the heat outlet pipe is fixedly connected to the top of the shell-and-tube heat exchanger.

[0012] Preferably, the end of the extension connecting pipe away from the preheating liquid inlet pipe is fixedly connected to the top right side of the preheating water tank.

[0013] Preferably, the top of the hollow storage box is provided with a through groove, the diameter of which is adapted to the diameter of the extraction tube.

[0014] Preferably, the top of the hollow storage box has a through hole, the diameter of which is adapted to the bottom diameter of the temperature detection sensor. The detection is performed by extraction, which will not affect the overall transmission. The detection can be carried out during processing, which is convenient for timely adjustment.

[0015] Preferably, the temperature detection sensor extends through the top of the hollow storage box and is connected to the interior of the hollow storage box.

[0016] Preferably, the intermediate connecting block is fixedly connected between adjacent inner spiral preheating coils.

[0017] Preferably, the end of the extraction tube furthest from the intermediate connecting tube is connected to the interior of the hollow storage box.

[0018] Preferably, the number of heat outlet pipes, waste heat recovery ends and shell-and-tube heat exchangers is eight, and the eight heat outlet pipes, waste heat recovery ends and shell-and-tube heat exchangers are distributed in a ring at equal intervals on the top of the annular base.

[0019] Preferably, the temperature sensor is model WRP-130, which allows operators to directly read the pressure and temperature values ​​of the steam, enabling effective control of the methanol evaporation temperature.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This utility model relates to a methanol evaporator preheating device for the production of methyltrimethoxysilane. By incorporating a steam flow and temperature balance adjustment component and integrating pressure gauge and temperature detection sensor functions, the operator can directly read the steam pressure and temperature values, adjust the valve opening according to the read pressure and temperature values, and control the steam flow and pressure entering the evaporator jacket. This enables effective control of the methanol evaporation temperature, ensuring stable preheating effect and good performance.

[0022] 2. The methanol evaporator preheating device for producing methyltrimethoxysilane of this utility model is equipped with a preheating treatment component and a shell-and-tube heat exchanger for waste heat recovery. This waste heat is used to preheat the methanol entering the preheating water tank. The waste heat recovery end and the heat outlet pipe form a closed waste heat recovery cycle system, which improves the energy utilization rate of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the methanol evaporator preheating unit of this utility model;

[0026] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B.

[0027] In the diagram: 1. Methanol storage tank; 2. Evaporator; 3. Preheating water tank; 4. Steam flow and temperature balance adjustment assembly; 401. Connecting pipe; 402. Intermediate connecting pipe; 403. Preheating inlet pipe; 404. First control valve; 405. First shut-off valve; 406. Extension connecting pipe; 407. Second control valve; 408. Connecting frame; 409. Extraction pipe; 410. Second shut-off valve; 411. Hollow storage box; 412. Temperature detection sensor; 413. Pressure gauge; 414. Connecting plate; 5. Preheating treatment assembly; 501. Inner spiral preheating coil; 502. Treatment cylinder; 503. Connecting block; 504. Intermediate connecting block; 505. Heat outlet pipe; 506. Annular base; 507. Waste heat recovery end; 508. Shell and tube heat exchanger. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-4 The present invention provides the following technical solution:

[0030] A methanol evaporator preheating device for producing methyltrimethoxysilane includes a methanol storage tank 1, an evaporator 2, and a preheating water tank 3. A steam flow and temperature balance regulating component 4 is installed on the top of the methanol storage tank 1, and a preheating treatment component 5 is installed inside the preheating water tank 3.

[0031] The steam flow and temperature balance regulating assembly 4 includes a connecting pipe 401, an intermediate connecting pipe 402, a preheating inlet pipe 403, a first control valve 404, a first shut-off valve 405, an extension connecting pipe 406, a second control valve 407, a connecting bracket 408, an extraction pipe 409, a second shut-off valve 410, a hollow storage box 411, a temperature detection sensor 412, a pressure gauge 413, and a connecting plate 414. The connecting pipe 401 is fixedly connected to the top of the methanol storage tank 1, the intermediate connecting pipe 402 is fixedly connected to the bottom end of the connecting pipe 401 near the left side, and the preheating inlet pipe 403 is fixedly connected to the bottom end of the connecting pipe 401. The first control valve 404 is fixedly connected to the left side of the evaporator 2, and the first shut-off valve 405 is fixedly connected to the bottom surface of the intermediate connecting pipe 402. The extension connecting pipe 406 is fixedly connected to the bottom of the preheating inlet pipe 403. The second control valve 407 is fixedly connected to the surface of the extension connecting pipe 406. The connecting bracket 408 is fixedly connected to the right side of the front of the intermediate connecting pipe 402. The hollow storage box 411 is fixedly connected to the top of the connecting bracket 408. The extraction pipe 409 is fixedly connected to the front of the intermediate connecting pipe 402. The second shut-off valve 410... The first valve is fixedly connected to the top of the hollow storage box 411. The second shut-off valve 410 is connected to the surface of the extraction pipe 409. The pressure gauge 413 is fixedly connected to the back of the connecting bracket 408. The connecting plate 414 is fixedly connected to the top of the pressure gauge 413. The temperature detection sensor 412 is fixedly connected to the front of the connecting plate 414. The temperature detection sensor 412 is model WRP-130. The operator can directly read the pressure and temperature values ​​of the steam, which can effectively control the methanol evaporation temperature. The end of the extension connecting pipe 406 away from the preheating inlet pipe 403 is fixedly connected to the preheating water tank 3. On the top right side, the top of the hollow storage box 411 has a through groove, the diameter of which matches the diameter of the extraction tube 409. The top of the hollow storage box 411 has a through hole, the diameter of which matches the bottom diameter of the temperature sensor 412. The detection is performed by extraction, which will not affect the overall transmission. It can be detected during processing, which is convenient for timely adjustment. The temperature sensor 412 extends through the top of the hollow storage box 411 and is connected to the inside of the hollow storage box 411. The end of the extraction tube 409 away from the middle connecting tube 402 is connected to the inside of the hollow storage box 411.

[0032] The preheating assembly 5 includes an inner spiral preheating coil 501, a processing cylinder 502, a connecting block 503, an intermediate connecting block 504, a heat outlet pipe 505, an annular base 506, a waste heat recovery end 507, and a shell-and-tube heat exchanger 508. The annular base 506 is fixedly connected to the bottom of the preheating water tank 3. The processing cylinder 502 is fixedly connected to the top of the annular base 506. The connecting block 503 is fixedly connected to the center of the top front of the processing cylinder 502. The inner spiral preheating coil 501 is fixedly connected to the inside of the connecting block 503. The inner ring of the inner spiral preheating coil 501 is connected to... The surface of the treatment cylinder 502 is treated. The shell and tube heat exchanger 508 is fixedly connected to the top of the annular base 506. The waste heat recovery end 507 is fixedly connected to the front of the annular base 506. The heat outlet pipe 505 is fixedly connected to the top of the shell and tube heat exchanger 508. The intermediate connecting block 504 is fixedly connected between adjacent inner spiral preheating coils 501. There are eight heat outlet pipes 505, waste heat recovery end 507 and shell and tube heat exchangers 508. The eight heat outlet pipes 505, waste heat recovery end 507 and shell and tube heat exchangers 508 are distributed in a ring at equal intervals on the top of the annular base 506.

[0033] In operation, the methanol storage tank 1 is installed higher than the evaporator 2 and connected via a connecting pipe 401. The methanol flows naturally into the evaporator 2 using the gravitational potential energy generated by the liquid level difference. An intermediate connecting pipe 402 and a preheating inlet pipe 403 are located at the bottom of the connecting pipe 401, connecting the evaporator 2 and methanol storage tank 1 to the preheating water tank 3. The preheating water tank 3 generates hot steam, which then enters the methanol storage tank 1. The steam pressure and temperature are monitored by a temperature and pressure detection component between the intermediate connecting pipe 402 and the preheating inlet pipe 403. This component integrates a pressure gauge 413 and a temperature sensor 412, allowing operators to directly read the steam pressure and temperature values. Based on these values, the valve opening is adjusted to control the steam flow and pressure entering the evaporator jacket, thereby regulating the methanol evaporation temperature. When a higher methanol evaporation temperature is required, the valve is opened more open. The first control valve 404 increases the steam flow rate; conversely, it closes the first control valve 404 to reduce the flow rate, thereby effectively controlling the methanol evaporation temperature, ensuring stable preheating effect and good performance. Furthermore, a preheating treatment component 5 is installed inside the preheating water tank 3, with a staged preheating structure. Before entering the main body of the evaporator 2, the methanol undergoes preliminary preheating via the inner spiral preheating coil 501 in the preheating water tank 3. The preheating water tank 3 utilizes the waste heat water discharged from the evaporator 2 for heating. After entering, the methanol undergoes preliminary preheating before entering the evaporator 2 at the rear end. The evaporator 2 is equipped with a shell-and-tube heat exchanger 508, a waste heat recovery end 507, and a heat outlet pipe 505. The waste heat recovery device uses a shell-and-tube heat exchanger 508 to preheat the methanol entering the preheating water tank 3 using this waste heat. The waste heat recovery end 507 and the heat outlet pipe 505 form a closed waste heat recovery cycle system, improving the energy utilization rate of the device.

[0034] 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 the 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 methanol evaporator preheating device for producing methyltrimethoxysilane, comprising a methanol storage tank (1), an evaporator (2), and a preheating water tank (3), characterized in that: The top of the methanol storage tank (1) is equipped with a steam flow and temperature balance regulating component (4), and the interior of the preheating water tank (3) is equipped with a preheating treatment component (5). The steam flow and temperature balance regulating component (4) includes a conveying regulating mechanism and a flow and temperature detection mechanism. The conveying regulating mechanism is connected to the surface of the methanol storage tank (1), and the flow and temperature detection mechanism is connected to the surface of the conveying regulating mechanism. The conveying and regulating mechanism includes a connecting pipe (401), an intermediate connecting pipe (402), a preheating inlet pipe (403), a first control valve (404), a first shut-off valve (405), an extension connecting pipe (406), and a second control valve (407). The connecting pipe (401) is fixedly connected to the top of the methanol storage tank (1). The intermediate connecting pipe (402) is fixedly connected to the bottom of the connecting pipe (401) near the left side. The preheating inlet pipe (403) is fixedly connected to the bottom of the connecting pipe (401) near the right side. The first control valve (404) is fixedly connected to the left side of the evaporator (2). The first shut-off valve (405) is fixedly connected to the bottom of the surface of the intermediate connecting pipe (402). The extension connecting pipe (406) is fixedly connected to the bottom of the preheating inlet pipe (403). The second control valve (407) is fixedly connected to the surface of the extension connecting pipe (406).

2. The methanol evaporator preheating device for producing methyltrimethoxysilane according to claim 1, characterized in that: The flow and temperature detection mechanism includes a connecting frame (408), an extraction pipe (409), a second shut-off valve (410), a hollow storage box (411), a temperature detection sensor (412), a pressure gauge (413), and a connecting plate (414). The connecting frame (408) is fixedly connected to the right side of the front of the intermediate connecting pipe (402). The hollow storage box (411) is fixedly connected to the top of the connecting frame (408). The extraction pipe (409) is fixedly connected to the front of the intermediate connecting pipe (402). The second shut-off valve (410) is fixedly connected to the top of the hollow storage box (411) and connected to the surface of the extraction pipe (409). The pressure gauge (413) is fixedly connected to the back of the connecting frame (408). The connecting plate (414) is fixedly connected to the top of the pressure gauge (413). The temperature detection sensor (412) is fixedly connected to the front of the connecting plate (414).

3. The methanol evaporator preheating device for producing methyltrimethoxysilane according to claim 1, characterized in that: The preheating assembly (5) includes an inner spiral preheating coil (501), a processing cylinder (502), a connecting block (503), an intermediate connecting block (504), a heat outlet pipe (505), an annular base (506), a waste heat recovery end (507), and a shell-and-tube heat exchanger (508). The annular base (506) is fixedly connected to the bottom of the preheating water tank (3), the processing cylinder (502) is fixedly connected to the top of the annular base (506), and the connecting block (503) is fixedly connected to the... At the top center of the front of the processing cylinder (502), the inner spiral preheating coil (501) is fixedly connected to the inside of the connecting block (503), the inner ring of the inner spiral preheating coil (501) is connected to the surface of the processing cylinder (502), the shell and tube heat exchanger (508) is fixedly connected to the top of the annular base (506), the waste heat recovery end (507) is fixedly connected to the front of the annular base (506), and the heat outlet pipe (505) is fixedly connected to the top of the shell and tube heat exchanger (508).

4. The methanol evaporator preheating device for producing methyltrimethoxysilane according to claim 2, characterized in that: The top of the hollow storage box (411) is provided with a through groove, the diameter of which is adapted to the diameter of the extraction tube (409).

5. A methanol evaporator preheating device for producing methyltrimethoxysilane according to claim 2, characterized in that: The top of the hollow storage box (411) has a through hole, the diameter of which is adapted to the bottom diameter of the temperature detection sensor (412).

6. A methanol evaporator preheating device for producing methyltrimethoxysilane according to claim 2, characterized in that: The temperature sensor (412) extends through the top of the hollow storage box (411) and is connected to the inside of the hollow storage box (411).

7. A methanol evaporator preheating device for producing methyltrimethoxysilane according to claim 3, characterized in that: The intermediate connecting block (504) is fixedly connected between adjacent inner spiral preheating coils (501).

8. A methanol evaporator preheating device for producing methyltrimethoxysilane according to claim 2, characterized in that: The end of the extraction tube (409) away from the intermediate connecting tube (402) is connected to the interior of the hollow storage box (411).

9. A methanol evaporator preheating device for producing methyltrimethoxysilane according to claim 3, characterized in that: The number of the heat outlet pipe (505), waste heat recovery end (507) and shell-and-tube heat exchanger (508) is eight, and the eight heat outlet pipes (505), waste heat recovery end (507) and shell-and-tube heat exchanger (508) are distributed in a ring at equal intervals on the top of the annular base (506).

10. A methanol evaporator preheating device for producing methyltrimethoxysilane according to claim 2, characterized in that: The temperature detection sensor (412) is model WRP-130, and the extension connecting pipe (406) is fixedly connected to the top right side of the preheating water tank (3) at the end away from the preheating liquid inlet pipe (403).

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