CN211227024U - Energy-saving temperature-control heat exchange equipment for methanol-to-oil - Google Patents
Energy-saving temperature-control heat exchange equipment for methanol-to-oil Download PDFInfo
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- CN211227024U CN211227024U CN201922139838.XU CN201922139838U CN211227024U CN 211227024 U CN211227024 U CN 211227024U CN 201922139838 U CN201922139838 U CN 201922139838U CN 211227024 U CN211227024 U CN 211227024U
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses an energy-saving temperature-control heat exchange device for methanol-to-oil, which comprises a reactor, a methanol preheater, a waste heat recovery water heater and a plate heat exchanger; the reactor is provided with a second thermocouple for measuring the temperature of a methanol feed inlet of the reactor and a first thermocouple for measuring the temperature of a circulating gas feed inlet of the reactor; the discharge hole of the reactor is connected with the plate heat exchanger; the methanol preheater and the waste heat recovery hot water furnace are connected in parallel, and a second pneumatic valve is arranged on a common pipeline of the methanol preheater and the waste heat recovery hot water furnace which are connected in parallel; the discharge hole of the plate heat exchanger is respectively connected with a circulating gas feed hole on the reactor and a common pipeline where a second pneumatic valve is located and used for connecting the methanol preheater and the waste heat recovery water heater; the discharge hole of the methanol preheater is connected with a methanol feed inlet on the reactor; the utility model discloses need not to increase other heating or cooling device, just can make the temperature of the circulation gas of circulation gas feed inlet and methyl alcohol feed inlet department temperature remain stable to fully retrieve unnecessary heat.
Description
Technical Field
The utility model relates to a chemical industry heat transfer and temperature control technical field especially involve an energy-conserving accuse temperature indirect heating equipment of methyl alcohol system oil.
Background
In the industrial production of petroleum and chemical industry, the stability of temperature directly affects the smooth performance of chemical reaction and the quality and yield of final products.
In the process of preparing oil from methanol, methanol and recycle gas enter a reactor at a stable temperature, which is one of the key factors influencing the quality and yield of products, and therefore an effective temperature control system needs to be designed for the reactor.
The traditional temperature control mode realizes the required temperature by forced cooling or heating, and has high energy consumption and low temperature increasing and reducing speed. The utility model discloses a to the control of heat exchanger heat transfer volume, realize stabilizing the accuse temperature to waste heat recycle reaches energy saving and emission reduction's effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the weak point among the above-mentioned prior art and provide one kind with high temperature result and low temperature methyl alcohol and circulation gas heat transfer, control and adjust the temperature of methyl alcohol system oil in-process circulation gas and methyl alcohol to make methyl alcohol system oil reaction go on smoothly steadily, and with waste heat recovery's an energy-conserving accuse temperature indirect heating equipment of methyl alcohol system oil.
The utility model discloses a realize through following mode: the utility model provides an energy-conserving accuse temperature indirect heating equipment of methyl alcohol system oil which characterized in that: comprises a reactor 4, a methanol preheating 3, a waste heat recovery hot water furnace 13 and a plate heat exchanger 21; the reactor 4 is provided with a second thermocouple 19 for measuring the temperature of the methanol feed inlet of the reactor 4 and a first thermocouple 18 for measuring the temperature of the recycle gas feed inlet of the reactor 4; the discharge hole of the reactor 4 is connected with a plate heat exchanger 21; the methanol preheater 3 is connected with the waste heat recovery hot water furnace 13 in parallel, and a second pneumatic valve 11 is arranged on a common pipeline of the methanol preheater and the waste heat recovery hot water furnace which are connected in parallel; the discharge hole of the plate heat exchanger 21 is respectively connected with a circulating gas feed hole on the reactor 4 and a common pipeline where the second pneumatic valve 11 is located and is connected with the methanol preheater 3 and the waste heat recovery hot water furnace 13; the discharge hole of the methanol preheater 3 is connected with the methanol feed inlet on the reactor 4; the second pneumatic valve 11, the first thermocouple 18 and the second thermocouple 19 are connected with an industrial personal computer 22.
Further, a second gas flowmeter 12 is arranged behind the second air-operated valve 11; the second gas flow meter 12 is connected to an industrial personal computer 22.
Further, a third thermocouple 20, a cold water inlet valve 14 and a hot water outlet pipe 15 are arranged on the waste heat recovery hot water furnace 13; the discharge hole of the waste heat recovery hot water furnace 13 is connected with a condenser 16; the third thermocouple 20 and the cold water inlet valve 14 are connected with an industrial personal computer 22.
Further, a feed inlet of the methanol preheater 3 is sequentially connected with a methanol dosing pump 2 and a methanol storage tank 1.
Further, the methanol preheater 3 and the waste heat recovery hot water furnace 13 are connected with a condenser 16; the condenser 16 is connected with an oil-water separator 17 and a circulating gas storage tank 5; the circulating gas storage tank 5 is connected with a pressure stabilizing tank 8 through a circulating gas compressor 6; the pressure stabilizing tank 8 is connected with the plate heat exchanger 21, and a discharge hole of the pressure stabilizing tank 8 is connected with a circulating gas feed hole on the reactor 4 through a first pneumatic valve 9; the circulating air compressor 6 and the first pneumatic valve 9 are connected with an industrial personal computer 22.
Further, a pressure sensor 7 is arranged on the pressure stabilizing tank 8; a first gas flowmeter 10 is arranged behind the first pneumatic valve 9.
The beneficial effects of the utility model reside in that: a circulating gas bypass is arranged outside the plate heat exchanger, namely, a discharge port of the pressure stabilizing tank is connected with a circulating gas feed port on the reactor through a first pneumatic valve, and the temperature of the circulating gas entering the circulating gas feed port of the reactor can be easily kept stable without adding other heating or cooling equipment. The waste heat recovery water heater is connected with the methanol preheater in parallel, the temperature of a second thermocouple at a methanol feeding hole is kept stable by adjusting a second pneumatic valve on the common pipeline, and redundant heat is fully recovered.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the connection of an industrial personal computer of the present invention;
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
as shown in fig. 1-2, an energy-saving temperature-control heat exchange device for methanol-to-oil is characterized in that: comprises a reactor 4, a methanol preheater 3, a waste heat recovery hot water furnace 13 and a plate heat exchanger 21; the reactor 4 is provided with a second thermocouple 19 for measuring the temperature of the methanol feed inlet of the reactor 4 and a first thermocouple 18 for measuring the temperature of the recycle gas feed inlet of the reactor 4; the discharge hole of the reactor 4 is connected with a plate heat exchanger 21; the methanol preheater 3 is connected with the waste heat recovery hot water furnace 13 in parallel, and a second pneumatic valve 11 is arranged on a common pipeline of the methanol preheater and the waste heat recovery hot water furnace which are connected in parallel; the discharge hole of the plate heat exchanger 21 is respectively connected with a circulating gas feed hole on the reactor 4 and a common pipeline where the second pneumatic valve 11 is located and is connected with the methanol preheater 3 and the waste heat recovery hot water furnace 13; the discharge hole of the methanol preheater 3 is connected with the methanol feed inlet on the reactor 4; the second pneumatic valve 11, the first thermocouple 18 and the second thermocouple 19 are connected with an industrial personal computer 22.
Further, a second gas flowmeter 12 is arranged behind the second air-operated valve 11; the second gas flow meter 12 is connected to an industrial personal computer 22.
Further, a third thermocouple 20, a cold water inlet valve 14 and a hot water outlet pipe 15 are arranged on the waste heat recovery hot water furnace 13; the discharge hole of the waste heat recovery hot water furnace 13 is connected with a condenser 16; the third thermocouple 20 and the cold water inlet valve 14 are connected with an industrial personal computer 22.
Further, a feed inlet of the methanol preheater 3 is sequentially connected with a methanol dosing pump 2 and a methanol storage tank 1.
Further, the methanol preheater 3 and the waste heat recovery hot water furnace 13 are connected with a condenser 16; the condenser 16 is connected with an oil-water separator 17 and a circulating gas storage tank 5; the circulating gas storage tank 5 is connected with a pressure stabilizing tank 8 through a circulating gas compressor 6; the pressure stabilizing tank 8 is connected with the plate heat exchanger 21, and a discharge hole of the pressure stabilizing tank 8 is connected with a circulating gas feed hole on the reactor 4 through a first pneumatic valve 9; the circulating air compressor 6 and the first pneumatic valve 9 are connected with an industrial personal computer 22.
Further, a pressure sensor 7 is arranged on the pressure stabilizing tank 8; a first gas flowmeter 10 is arranged behind the first pneumatic valve 9.
The working principle is as follows: because methanol-to-oil is exothermic reaction, the reaction product is with high temperature, and about 300 degrees gaseous state forms take a large amount of heats to go out reactor 4, the utility model discloses with high temperature product and low temperature methyl alcohol and circulation gas heat transfer, control and adjust the temperature of methyl alcohol-to-oil in-process circulation gas and methyl alcohol to make the methanol-to-oil reaction go on steadily smoothly, and with waste heat recovery utilization.
In the methyl alcohol system oil technology, generally set for between 70-80 degrees with the temperature that methyl alcohol got into reactor 4, work as the utility model discloses a second thermocouple 19 surveys methyl alcohol feed inlet temperature and is higher than 80 degrees or be less than 70 degrees when, industrial computer 22 obtains the temperature data that surpasss normal scope, industrial computer 22 sends the instruction to second pneumatic valve 11 and closes for a short time or opens greatly, makes the low temperature gas in the high temperature gas that goes out and the methyl alcohol pre-heater 3 from plate heat exchanger 21 carry out appropriate mixture, and the temperature that the methyl alcohol that finally flows out in from methyl alcohol pre-heater 3 gets into reactor 4 adjusts to between 70-80 degrees normal operating temperature.
The temperature that the recycle gas got into reactor 4 is generally set for between 120-150 degrees, works as the utility model discloses a first thermocouple 18 records that the temperature is higher than 150 degrees or is less than 120 degrees when, industrial computer 22 obtains the temperature data that surpasss normal scope, and industrial computer 22 sends the instruction to first pneumatic valve 9 and closes for a short time or opens greatly, makes the low temperature gas that flows out in the surge tank 8 and the high temperature gas that flows out in the plate heat exchanger 21 carry out appropriate mixture, and the final mist gets into the recycle gas feed inlet temperature adjustment of reactor 4 and reaches between 120-150 degrees normal operating temperature.
And (4) recovering waste heat, wherein according to the flow of the second gas flowmeter 12 and the temperature data measured by the third thermocouple 20, the industrial personal computer 22 sends an instruction to the cold water inlet valve 14 to adjust the cold water inlet quantity so as to ensure the full utilization of the waste heat.
The gas in the discharge port of the preheating and recycling hot water furnace 13 and a part of gas flowing out of the methanol preheater 3 enter a condenser 16, a part of gas in the condenser 16 is condensed and then enters an oil-water separator 17 for further treatment, the gas which is not completely condensed enters a circulating gas storage cabinet 5 and then enters a pressure stabilizing tank 8 through a circulating gas compressor 7 to become low-temperature circulating gas, the low-temperature circulating gas is used for being properly mixed with high-temperature circulating gas flowing out of a plate-type ventilator 21, and the temperature of the circulating gas entering a circulating gas feed port is adjusted to reach normal temperature.
The utility model discloses industrial computer 22 gathers thermocouple 19 and thermocouple 18's temperature data according to the required temperature parameter of 4 material entries of reactor, and the aperture of adjustment pneumatic valve 11 and pneumatic valve 9 changes the product flow through methyl alcohol pre-heater 3 and the flow of the circulation gas through plate heat exchanger 21, makes 4 material entry temperatures of reactor remain stable, reaches energy saving and emission reduction's effect.
The utility model discloses open a circulating gas bypass outside plate heat exchanger 21, the discharge gate of surge tank 8 links to each other through the circulating gas feed inlet on first pneumatic valve 9 and reactor 4 promptly, need not to increase other heating or cooling device, just can make the temperature of the circulating gas that gets into reactor 4 circulating gas feed inlet remain stable very easily. The waste heat recovery hot water furnace 13 is connected with the methanol preheater 3 in parallel, the temperature of the second thermocouple 19 at the methanol feeding hole is kept stable by adjusting the second pneumatic valve 11 on the common pipeline, and the redundant heat is fully recovered.
The device of its structure and model is not specifically described in the utility model, is the device commonly used in this field, and the field technical staff all can carry out appropriate selection according to the actual demand, consequently does not carry out detailed description to its specific structure, industrial computer 22 realizes each item control function, the field technical staff combines the concrete description of description all can to realize.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an energy-conserving accuse temperature indirect heating equipment of methyl alcohol system oil which characterized in that: comprises a reactor (4), a methanol preheater (3), a waste heat recovery water heater (13) and a plate heat exchanger (21); the reactor (4) is provided with a second thermocouple (19) for measuring the temperature of a methanol feed inlet of the reactor (4) and a first thermocouple (18) for measuring the temperature of a circulating gas feed inlet of the reactor (4); the discharge hole of the reactor (4) is connected with the plate heat exchanger (21); the methanol preheater (3) and the waste heat recovery water heater (13) are connected in parallel, and a second pneumatic valve (11) is arranged on a common pipeline of the methanol preheater and the waste heat recovery water heater in parallel; the discharge hole of the plate heat exchanger (21) is respectively connected with a circulating gas feed hole on the reactor (4) and a common pipeline which is positioned on the second pneumatic valve (11) and is connected with the methanol preheater (3) and the waste heat recovery water heater (13); a discharge hole of the methanol preheater (3) is connected with a methanol feed hole on the reactor (4); the second pneumatic valve (11), the first thermocouple (18) and the second thermocouple (19) are connected with an industrial personal computer (22).
2. The energy-saving temperature-control heat exchange device for methanol-to-oil according to claim 1, characterized in that: a second gas flowmeter (12) is arranged behind the second pneumatic valve (11); the second gas flowmeter (12) is connected with an industrial personal computer (22).
3. The energy-saving temperature-control heat exchange device for methanol-to-oil according to claim 1, characterized in that: the waste heat recovery water heater (13) is provided with a third thermocouple (20), a cold water inlet valve (14) and a hot water outlet pipe (15); the discharge hole of the waste heat recovery water heater (13) is connected with a condenser (16); and the third thermocouple (20) and the cold water inlet valve (14) are connected with an industrial personal computer (22).
4. The energy-saving temperature-control heat exchange device for methanol-to-oil according to claim 1, characterized in that: the feed inlet of the methanol preheater (3) is sequentially connected with a methanol dosing pump (2) and a methanol storage tank (1).
5. The energy-saving temperature-control heat exchange device for methanol-to-oil according to claim 1, characterized in that: the methanol preheater (3) and the waste heat recovery water heater (13) are connected with the condenser (16); the condenser (16) is connected with an oil-water separator (17) and a circulating gas storage cabinet (5); the circulating gas storage tank (5) is connected with the pressure stabilizing tank (8) through a circulating gas compressor (6); the pressure stabilizing tank (8) is connected with the plate heat exchanger (21), and a discharge hole of the pressure stabilizing tank (8) is connected with a circulating gas feed hole on the reactor (4) through a first pneumatic valve (9); and the circulating air compressor (6) and the first pneumatic valve (9) are connected with the industrial personal computer (22).
6. The energy-saving temperature-control heat exchange device for methanol-to-oil according to claim 5, characterized in that: a pressure sensor (7) is arranged on the pressure stabilizing tank (8); and a first gas flowmeter (10) is arranged behind the first pneumatic valve (9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922139838.XU CN211227024U (en) | 2019-12-03 | 2019-12-03 | Energy-saving temperature-control heat exchange equipment for methanol-to-oil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922139838.XU CN211227024U (en) | 2019-12-03 | 2019-12-03 | Energy-saving temperature-control heat exchange equipment for methanol-to-oil |
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| CN211227024U true CN211227024U (en) | 2020-08-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110791307A (en) * | 2019-12-03 | 2020-02-14 | 新榕能源(福建)有限公司 | Energy-saving temperature control heat exchange system for methanol-to-oil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110791307A (en) * | 2019-12-03 | 2020-02-14 | 新榕能源(福建)有限公司 | Energy-saving temperature control heat exchange system for methanol-to-oil |
| CN110791307B (en) * | 2019-12-03 | 2023-08-22 | 新榕能源(福建)有限公司 | Energy-saving temperature-control heat exchange system for methanol-to-oil |
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