CN215365892U - Vertical internal combustion method integral heat treatment system of deethanizing stripping tower - Google Patents
Vertical internal combustion method integral heat treatment system of deethanizing stripping tower Download PDFInfo
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- CN215365892U CN215365892U CN202121097023.0U CN202121097023U CN215365892U CN 215365892 U CN215365892 U CN 215365892U CN 202121097023 U CN202121097023 U CN 202121097023U CN 215365892 U CN215365892 U CN 215365892U
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Abstract
The utility model provides a vertical internal combustion method integral heat treatment system of a deethanizing stripping tower, which comprises a burner, a heat conducting device, a temperature measuring device and a combustion monitoring system, wherein the burner comprises a main burner arranged at the bottom of a deethanizing stripping tower body and a plurality of auxiliary burners arranged at side wall pipe openings of the tower body in a layered mode, the heat conducting device is arranged at each burner, one end of each burner is connected with the corresponding burner, the other end of each burner extends into the inside of the deethanizing stripping tower body, the temperature measuring device is arranged on the outer surface of the deethanizing stripping tower body, the combustion monitoring system comprises a heat treatment monitoring unit and a combustion control unit, the heat treatment monitoring unit is used for receiving temperature data of the temperature measuring system and monitoring in real time, and the combustion control unit is connected with the burners and used for sending control signals to the burners. The temperature control precision is improved, and the uniform distribution of the space temperature field in the tower is ensured.
Description
Technical Field
The utility model relates to an integral heat treatment system of a metal container, in particular to a vertical internal combustion method integral heat treatment system of a deethanizing stripping tower.
Background
With the continuous progress of the design technology of the domestic large pressure container, the manufacturing technology of the corresponding large pressure container is also steadily improved, and the ultralimit large pressure container is continuously applied to construction in recent years. These oversized pressure vessels are characterized by either an excessive weight, an excessive length, an excessive diameter, or an excessive wall thickness. In some construction sites, a large-size pressure container with super-long length, small diameter and thick wall thickness and large length-diameter ratio and super-limit appears.
Aiming at the integral heat treatment of the large pressure container, the domestic more common methods comprise furnace heat treatment, internal electric heating heat treatment, high-temperature flue gas heat treatment and the like. The heat treatment in the furnace is simple in operation, convenient to maintain, easy to realize in process, low in risk, high in temperature control precision, long in furnace building period, high in cost and limited by the size of an over-limit large pressure vessel. The internal electric heating method has the advantages of easy control of heat treatment temperature and extremely high heat efficiency, but has long construction period, large heating element investment, high loss rate and restriction of site power load. The high-temperature flue gas heat treatment method has short construction period, simple device, easy maintenance and relatively low construction cost, but only stays at the design stage. The respective defects of the three heat treatment methods limit the application of the heat treatment method in the integral heat treatment construction of the large-length-diameter-ratio overrun pressure vessel with high height, small diameter and thick wall thickness.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a vertical internal combustion method integral heat treatment system of a deethanizing stripping tower, which has the advantages of stable heat output, high heat efficiency and short construction period, and is suitable for integral heat treatment construction of large-size pressure vessels with large length-diameter ratio, high height, small diameter and thick wall thickness.
In order to achieve the purpose, the utility model provides a vertical internal combustion method integral heat treatment system of a deethanizing stripping tower, which comprises a combustor, a heat conducting device, a temperature measuring device and a combustion monitoring system, wherein the combustor comprises a main combustor arranged at the bottom of a deethanizing stripping tower body and a plurality of auxiliary combustors arranged at side wall pipe openings of the tower body in layers, each combustor is provided with one heat conducting device, one end of each combustor is connected with the corresponding combustor, the other end of each combustor extends into the inside of the deethanizing stripping tower body, the temperature measuring device is arranged on the outer surface of the deethanizing stripping tower body, the combustion monitoring system comprises a heat treatment monitoring unit and a combustion control unit, the heat treatment monitoring unit is used for receiving temperature data of the temperature measuring system and monitoring in real time, and the combustion control unit is connected with the combustor and is used for sending control signals to the combustors.
Furthermore, the heat conducting device arranged around the main burner at the bottom of the tower body is provided with a hollow cylindrical flow conducting channel, and the side wall of the hollow cylindrical flow conducting channel is provided with pores for hot air to pass through.
Furthermore, the heat conducting device connected with the auxiliary burner at the pipe orifice of the side wall of the tower body is tubular and extends to the central part in the tower, and the end head of the heat conducting device is provided with an elbow which faces upwards.
Furthermore, the temperature measuring device comprises thermocouples which are uniformly distributed on the outer surface of the tower body and are used as temperature measuring points, and compensating wires connected with the thermocouples.
Further, the combustion monitoring system further comprises a fuel storage unit which is respectively connected with the combustor through a plurality of pipelines.
Compared with the common heat treatment method, the utility model has the following positive effects:
the heat requirement of the whole heat treatment of the tower body.
(1) The layered heat supply of the combustor effectively reduces the temperature difference. The multi-layer combustor is divided to supply heat simultaneously, the heat supply of each layer of combustor is controlled, the heat supply interval of the inside of each section of tower body is adjusted, the temperature field of the inner space of each section of tower body is controlled respectively, the temperature control precision is improved, and the internal temperature difference is effectively reduced.
(2) The heat conduction system is more scientific in arrangement and good in heat balance effect. The multilayer heat conducting device is erected in the tower, and flame flow and hot air flow formed by burning of each layer of burner are guided to the central part in the tower by adjusting the flowing direction and the radiation range of the flame flow and the hot air flow, so that the internal heat circulation of the tower is promoted, and the uniform distribution of the space temperature field in the tower is further ensured.
(3) The construction cost is low, and the construction is more flexible. According to the utility model, hot air flows into the tower body through the pipe orifice of the connecting pipe through the heat conduction device, a newly-built heating furnace is not needed, the furnace building cost and the equipment hoisting and transporting cost are greatly saved, the construction period is shorter, the construction is not limited by the size of an ultralimit large pressure container, the demand on the site is small, and the construction is more flexible.
Drawings
FIG. 1 is a general schematic of the present invention;
FIG. 3 is a schematic view of the heating and heat transfer system of the present invention;
FIG. 2 is a diagram of a thermometry system of the present invention;
wherein: 1. an auxiliary burner; 2. a central tube heat conducting device; 3. a deethanizer stripper; 4. a hot gas stream; 5. a bottom layer heat conducting device; 6. a main burner; 7. a temperature measuring device; 8. a heat treatment monitoring unit; 9. a computer; 10. a combustion control unit; 11. a fuel storage unit.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the vertical internal combustion process integrated heat treatment system of the deethanizer stripper of the present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a vertical internal combustion method integral heat treatment system of a deethanizing stripping tower, which is used for carrying out integral heat treatment construction of the vertical internal combustion method on the deethanizing stripping tower 3 by adopting layered heat supply and central pipe heat conduction and comprises a combustor, a heat conduction device, a temperature measuring device 7 and a combustion monitoring system.
Referring to fig. 1, the burner includes a main burner 6 and an auxiliary burner 1, each of which is connected to a fuel storage unit 11 and a combustion control unit 10 of a combustion monitoring system through a pipe for delivering fuel and a data transmission line, respectively. The auxiliary burners 1 are arranged in multiple layers at the positions of connecting pipes on the side wall of the container to supply heat. A main burner 6 is arranged at a manhole at the bottom of a cone of the deethanizing stripping tower 3 at the bottom layer, heat is supplied to the upward combustion in the longitudinal direction, a temperature field at the middle lower part of the tower is adjusted by adjusting the heat supply of the burner, and heat is supplied to the middle lower part in a key way. In other layers, a plurality of auxiliary combustors 1 are respectively arranged at the positions of a plurality of connecting pipe openings on the side wall of the tower body, and the temperature field in the radiation range of each layer of auxiliary combustors is controlled by adjusting the plurality of auxiliary combustors 1 to respectively provide heat for the middle part, the middle upper part and the upper part of the tower body.
Referring to fig. 2, heat transfer means, including a bottom layer heat transfer means 5 and a central tube heat transfer means 2, are built in the deethanizer stripper. The bottom heat conduction device 5 is a hollow columnar hot airflow channel arranged around a main burner at the bottom of the tower body, the hollow columnar hot airflow channel of the embodiment is formed by erecting a groined frame by using steel pipes, heat insulation cotton is fixed on the steel pipes, gaps are reserved between the heat insulation cotton for passing through hot airflow, circulation of bottom hot airflow is facilitated, and bottom temperature uniformity is properly improved while the bottom is prevented from being overheated due to heat radiation. The central pipe heat-conducting device 2 is arranged at the corresponding pipe orifice of the side wall of the tower body, a plurality of heat-conducting pipes extend to the central part in the tower along the corresponding pipe orifice positions of the connecting pipes respectively, and the end elbows are upward and arranged in layers. The central pipe heat conducting device 2 is used for guiding hot air flow to converge at the central part in the tower, effectively improving the temperature of the middle upper part area and effectively controlling the temperature field of the middle upper part space in the tower; the bottom layer heat conduction device is used for controlling the temperature field of the middle lower part of the tower and promoting heat circulation so as to achieve the purpose of realizing the balance of the internal temperature field.
Referring to fig. 3, the temperature measuring device 7 includes thermocouples uniformly distributed on the outer surface of the tower body as temperature measuring points and compensating wires connected with the thermocouples. The thermocouples are responsible for measuring the temperature, the required number of temperature measuring points is calculated according to the specification of the deethanizing stripping tower, then enough thermocouples are uniformly arranged on the outer surface of the tower body as the temperature measuring points, the distance between every two adjacent temperature measuring points is less than 4.6m, and all the adjacent temperature measuring points are distributed in a staggered mode and are firmly fixed. The compensation wire plays a role in transmitting temperature feedback signals, one end of the compensation wire is connected with the thermocouple, the other end of the compensation wire is connected with a heat treatment monitoring unit 8 of the combustion monitoring system, and the heat treatment monitoring unit 8 is responsible for receiving temperature data of the temperature measuring device and monitoring the temperature data in real time.
Referring to fig. 1 and 3, the combustion monitoring system includes a fuel storage unit 11, a combustion control unit 10, and a heat treatment monitoring unit 8. The fuel storage unit 11 is composed of a plurality of fuel storage tanks, is connected with the burner through a plurality of pipelines, is mainly used for storing and conveying fuel required by the integral heat treatment, adopts high-quality fuel, has stable heat output and high heat efficiency, and can continuously provide sufficient heat for the air in the container. The combustion control unit 10 is connected with the burner through a data transmission line, and the output power of the burner is adjusted by sending a signal to the burner through a program instrument arranged on the combustion control unit 10 to realize the control of the burner, so that the heat output is adjusted, and the heat treatment temperature process meeting the construction requirements is obtained. The heat treatment monitoring unit 8 is composed of a temperature monitoring device and a printing device. The temperature monitoring device is mainly responsible for displaying temperature feedback signals transmitted by the thermocouple and the compensation lead on a screen of a computer 9 in a temperature digital mode, monitoring the temperature change condition of each temperature measuring point and providing real-time temperature change data for the combustion control unit. The printing device records the real-time monitored temperature and prints the temperature in real time.
The working principle of the utility model is as follows: the de-ethanized stripping tower vertically erected on the base is subjected to external heat preservation to form a closed hearth, and the air in the tower body is heated by using the heat generated by fuel combustion. During construction, a plurality of burners are adopted for layered heat supply, and flame flow and hot air flow 4 are guided by a central pipe heat conduction device which is arranged in a tower in a layered mode and are concentrated at the central part of the tower body, so that the whole deethanizer is uniformly heated.
The key of the utility model is firstly a layered heat supply system: according to the structural characteristics and the distribution positions of the pipe orifices, a plurality of combustors are arranged in a multilayer way to supply heat. The heat supply interval in each section of the tower body is adjusted by controlling the heat supply of each layer of the combustor, so that the temperature field of the internal space of each section of the tower body is respectively controlled, the temperature control precision is improved, and the internal temperature difference is effectively reduced; secondly, the heat conduction system of the central pipe: according to the internal structure form of the stripping tower and the arrangement position of the burners, the pipe orifices of the burners are respectively arranged on the side wall of the tower, a plurality of heat conduction pipes are erected to transversely extend into the central elbow in the tower upwards, flame flow and hot air flow formed by combustion of each layer of burners are guided to the central part in the tower, the temperature of the middle upper part area is effectively improved, the heat circulation in the tower is promoted, and the uniform distribution of space temperature fields in the tower is ensured.
Claims (5)
1. A vertical internal combustion method integral heat treatment system of a deethanizing stripping tower is characterized by comprising a combustor, a heat conduction device, a temperature measuring device (7) and a combustion monitoring system, the combustor comprises a main combustor (6) arranged at the bottom of the de-ethanizing stripping tower body and a plurality of auxiliary combustors (1) arranged at the side wall pipe openings of the tower body in a layered manner, each combustor is provided with a heat conduction device, one end of the temperature measuring device is connected with a corresponding burner, the other end of the temperature measuring device extends into the inside of the de-ethane stripping tower body, the temperature measuring device (7) is arranged on the outer surface of the de-ethane stripping tower body, the combustion monitoring system comprises a heat treatment monitoring unit (8) and a combustion control unit (10), the heat treatment monitoring unit (8), the temperature monitoring device is used for receiving temperature data of a temperature measuring system and monitoring in real time, and the combustion control unit (10) is connected with the combustor and used for sending control signals to the combustor.
2. The vertical internal combustion process integrated heat treatment system of a deethanizer stripper as set forth in claim 1, wherein: the heat conducting device arranged around the main burner (6) at the bottom of the tower body is provided with a hollow columnar flow conducting channel, and the side wall of the hollow columnar flow conducting channel is provided with pores for hot air flow to pass through.
3. The vertical internal combustion process integrated heat treatment system of a deethanizer stripper as set forth in claim 1, wherein: the heat conducting device connected with the auxiliary burner at the pipe opening of the side wall of the tower body is tubular and extends to the central part in the tower, and the end head of the heat conducting device is provided with an elbow which faces upwards.
4. The vertical internal combustion process integrated heat treatment system of a deethanizer stripper as set forth in claim 1, wherein: the temperature measuring device (7) comprises thermocouples which are uniformly distributed on the outer surface of the tower body and are used as temperature measuring points, and compensating wires connected with the thermocouples.
5. The vertical internal combustion process integrated heat treatment system of a deethanizer stripper as set forth in claim 1, wherein: the combustion monitoring system further comprises a fuel storage unit (11) which is respectively connected with the combustor through a plurality of pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121097023.0U CN215365892U (en) | 2021-05-21 | 2021-05-21 | Vertical internal combustion method integral heat treatment system of deethanizing stripping tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121097023.0U CN215365892U (en) | 2021-05-21 | 2021-05-21 | Vertical internal combustion method integral heat treatment system of deethanizing stripping tower |
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| CN215365892U true CN215365892U (en) | 2021-12-31 |
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| CN202121097023.0U Active CN215365892U (en) | 2021-05-21 | 2021-05-21 | Vertical internal combustion method integral heat treatment system of deethanizing stripping tower |
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2021
- 2021-05-21 CN CN202121097023.0U patent/CN215365892U/en active Active
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