Electric heating energy storage fire tube heating furnace

Abstract

The utility model relates to the technical field of heating furnaces, and discloses an electric heating energy storage fire tube heating furnace which comprises a shell, an energy storage assembly, an electric heating element, a heat exchange assembly and a control assembly, the heat exchange assembly comprises a first collecting box, a second collecting box and a plurality of heat exchange tubes, and the heat exchange tubes are communicated with the first collecting box and the second collecting box. The energy storage assembly and the heat exchange tube are arranged in the shell at a first preset distance, the electric heating element and the energy storage assembly are arranged in the shell at a second preset distance, the control assembly comprises a controller and a plurality of temperature sensors, and the temperature sensors are arranged on the first header and / or the second header. And the temperature sensor and the electric heating element are electrically connected with the controller. The electric heating element is arranged to convert green electricity and valley electricity into heat energy and store the heat energy on the energy storage assembly, so that the energy storage assembly continuously heats the heat exchange medium, the utilization rate of the green electricity and the valley electricity is improved, the operation cost is reduced, carbon emission is reduced, and energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to an electric heating energy storage fire tube heating furnace. Background Art

[0002] A fire-tube furnace is used to heat crude oil, water, oil-gas mixtures, or natural gas during oil and gas gathering and transportation operations in oilfields. Traditional fire-tube furnaces primarily generate heat through fuel combustion. The fuel burns within the furnace, transferring the generated heat to the surrounding heat exchange tubes, which in turn heat the medium within them. However, the high and difficult-to-control temperature of the fuel combustion can easily cause coking and scaling of the heat exchange tubes, impacting furnace safety and heat transfer efficiency.

[0003] The country has recently launched a systematic plan for achieving carbon peak and carbon neutrality, proposing goals and tasks for the green, low-carbon transformation of energy. Heating furnaces will also transition from burning fuels like natural gas and coal to using green energy sources like solar energy and electricity. However, due to the drawbacks of solar energy being unstable, discontinuous, and requiring coordination with other energy sources, while electricity is more stable, and the cost of green and off-peak electricity is lower, converting these green and off-peak electricity into thermal energy and storing it for use in fire tube heating furnaces is a pressing issue. Utility Model Content

[0004] In order to overcome the problems existing in the relevant technology, the utility model provides an electric heating energy storage fire tube heating furnace, which has an energy storage component that can convert green electricity and valley electricity into thermal energy and store it for use in the fire tube heating furnace, thereby achieving the purpose of continuously providing heat for the heating furnace.

[0005] The technical solution adopted by the utility model is: an electric heating energy storage fire tube heating furnace, comprising a shell, an energy storage component, an electric heating element, a heat exchange component and a control component, wherein the heat exchange component is arranged in the shell, and the control component is electrically connected to the electric heating element;

[0006] The heat exchange assembly includes a first header, a second header, and a plurality of heat exchange tubes. The first header and the second header are respectively located at two ends of the shell. The heat exchange tubes communicate with the first header and the second header.

[0007] The energy storage assembly is disposed in the shell at a first preset distance from the heat exchange tube along the direction of the first header and the second header, and the electric heating element is disposed in the shell at a second preset distance from the energy storage assembly.

[0008] Furthermore, both ends of the plurality of heat exchange tubes are respectively provided on the first header and the second header and arranged circumferentially, and the plurality of heat exchange tubes are arranged circumferentially in the shell to form a first cavity.

[0009] Furthermore, the energy storage component is arranged in the first cavity, and the energy storage component includes energy storage bricks with heat storage capacity, and the energy storage bricks are stacked into a cylinder or a polygon.

[0010] Furthermore, a plurality of through holes are left on the end face of the energy storage component, and the through holes extend from one end of the energy storage component to the other end along the length direction of the energy storage component. The electric heating element extends from one end of the energy storage component into the through holes and extends to the other end of the energy storage component.

[0011] Furthermore, one end of the first header is provided with a first pipe communicating with the outside, and one end of the second header is provided with a second pipe communicating with the outside.

[0012] Furthermore, the control component includes a controller and a temperature sensor, the temperature sensor is electrically connected to the controller, the temperature sensor is located in the first pipe and / or the second pipe, and the electric heating element is electrically connected to the controller.

[0013] Furthermore, the controller is a PLC controller, and the PLC controller is connected to the host computer system signal through a communication port.

[0014] Furthermore, a thermal insulation layer is provided on the outside of the shell.

[0015] The present invention provides the following technical advantages: The invention utilizes electric heating elements to convert electrical energy into thermal energy and store it in an energy storage assembly. The heat exchange medium is heated by utilizing the energy storage assembly's heat resistance, heat storage, and sustainable heat release capabilities. In actual operation, the electric heating elements can be activated during off-peak hours or when photovoltaic panels are generating green power, heating the energy storage assembly and storing the heat there. During off-peak or green power periods, the electric heating elements can be deactivated, allowing the energy storage assembly to continuously release heat to heat the heat exchange medium. This improves the utilization of green power and off-peak electricity, reduces operating costs, reduces carbon emissions, and contributes to energy conservation and environmental protection. The fire tube furnace has a built-in control assembly with temperature sensors installed in the first and second headers. The temperature sensors and electric heating elements are electrically connected to a controller, which controls the operation of the fire tube furnace. The controller is equipped with a communication port for signal connection to a host computer system. This port transmits operational information about the fire tube furnace to the host computer system, which in turn sends control commands to the controller to control the operation of the fire tube furnace.

[0016] Other features and advantages disclosed in the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0018] Figure 1 The figure is a schematic cross-sectional view of an electrically heated energy storage fire tube heating furnace according to an exemplary embodiment.

[0019] Figure 2 It is another cross-sectional structural schematic diagram of an electrically heated energy storage fire tube heating furnace according to an exemplary embodiment.

[0020] Figure 3 The figure is a schematic diagram showing the internal circuit connections of an electrically heated energy storage fire tube heating furnace according to an exemplary embodiment.

[0021] Figure numerals: 10, electric heating energy storage fire tube heating furnace; 20, shell; 21, first cavity; 30, energy storage component; 40, electric heating element; 50, heat exchange component; 51, first header; 511, first pipeline; 52, second header; 521, second pipeline; 53, heat exchange tube; 60, control component; 61, PLC controller; 62, host computer system; 63, temperature sensor. DETAILED DESCRIPTION

[0022] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0023] like Figure 1 、 Figure 2 The figure shows an exemplary embodiment of the present invention. The electric heating energy storage fire tube heating furnace 10 of the present invention includes a housing 20, an energy storage assembly 30, an electric heating element 40, a heat exchange assembly 50, and a control assembly 60. The heat exchange assembly 50 is disposed within the housing 20, and the control assembly 60 is electrically connected to the electric heating element 40. The heat exchange assembly 50 includes a first header 51, a second header 52, and a plurality of heat exchange tubes 53. The first header 51 and the second header 52 are respectively located at opposite ends of the housing 20, and the heat exchange tubes 53 connect the first header 51 and the second header 52. The energy storage assembly 30 is disposed within the housing 20 at a first preset distance from the heat exchange tubes 53 along the direction of the first header 51 and the second header 52. The electric heating element 40 is disposed within the housing 20 at a second preset distance from the energy storage assembly 30.

[0024] The electric-heated, energy-storage fire-tube heating furnace 10 of the present invention comprises an energy storage assembly 30, an electric heating element 40, and a heat exchange assembly 50 within a housing 20. The heat exchange assembly 50 comprises a first header 51, a second header 52, and a plurality of heat exchange tubes 53. The first and second headers 51, 52 are disposed at opposite ends of the housing 20, and the plurality of heat exchange tubes 53 connect the first and second headers 51, 52. The energy storage assembly 30 is spaced a first preset distance from the heat exchange tubes 53 along the direction from the first header 51 to the second header 52, and the electric heating element 40 is spaced a second preset distance from the energy storage assembly 30. The second preset distance and the first preset distance are any reasonable distances that allow the electric heating element 40 to heat the energy storage assembly 30 and the electric heating element 40 and the energy storage assembly 30 to heat the medium within the heat exchange tubes 53. For example, when the first preset distance is 0, the energy storage assembly 30 is in contact with the heat exchange tubes 53, and when the second preset distance is 0, the energy storage assembly 30 is in contact with the electric heating element 40. The electric heating element 40 converts electrical energy into thermal energy and stores it in the energy storage assembly 30. The energy storage assembly 30's heat resistance, heat storage, and sustainable heat release properties are then used to heat the heat exchange medium. In actual operation, the electric heating element 40 can be activated during off-peak hours or when the photovoltaic panels are generating green power to heat the energy storage assembly 30, storing the heat there. During non-off-peak or green power periods, the electric heating element 40 can be deactivated, allowing the energy storage assembly 30 to continuously release heat to heat the heat exchange medium. This improves the utilization of green power and off-peak electricity, reduces operating costs, and minimizes carbon emissions, contributing to energy conservation and environmental protection.

[0025] For example, Figure 1 、 Figure 2 As shown, the ends of a plurality of heat exchange tubes 53 are respectively disposed on the first header 51 and the second header 52 and are arranged circumferentially. The plurality of heat exchange tubes 53 are arranged in a circumferential manner within the shell 20 to form a first cavity 21. The energy storage assembly 30 is disposed within the first cavity 21. The energy storage assembly 30 includes energy storage bricks with heat storage capacity, which are stacked into a cylinder or polygon. A plurality of through holes are left on the end face of the energy storage assembly 30. The through holes extend from one end of the energy storage assembly 30 to the other end along the length direction of the energy storage assembly 30. The electric heating element 40 extends from one end of the energy storage assembly 30 into the through hole and extends to the other end of the energy storage assembly 30.

[0026] The ends of the heat exchange tubes 53 are respectively disposed on the first header 51 and the second header 52, forming a closed shape on the first header 51 and the second header 52. The shape can be circular or other polygonal. As a result, the tube bodies of the heat exchange tubes 53 form a first cavity 21 within the shell 20.

[0027] The energy storage assembly 30 includes energy storage bricks with heat storage capacity. The energy storage bricks can be stacked into a cylindrical shape or a polygonal shape. Preferably, the energy storage assembly 30 is arranged in the middle position of the first cavity 21, and its outer surface is spaced apart from the heat exchange tube 53 facing it by a first preset distance to ensure that the medium in all heat exchange tubes 53 can be evenly heated. When the energy storage assembly 30 is stacked, a plurality of through holes are left on its end surface. The through holes extend from one end of the energy storage assembly 30 to the other end along the length direction of the energy storage assembly 30. The electric heating element 40 extends into the through hole from one end of the energy storage assembly 30 to the other end to provide heat to the energy storage assembly 30.

[0028] For example, in the exemplary embodiments disclosed herein, the electrically heated, energy-storage fire tube furnace 10 can be configured as either a vertical or horizontal structure. A first pipe 511, communicating with the exterior, is disposed at one end of the first header 51, while a second pipe 521, communicating with the exterior, is disposed at one end of the second header 52. The control assembly 60 includes a controller and a temperature sensor 63, which is electrically connected to the controller and located within the first pipe 511 and / or the second pipe 521. The electric heating element 40 is also electrically connected to the controller.

[0029] The shell 20 of the electrically heated, energy-storage, fire-tube heating furnace 10 of the present invention is provided with a first header 51 and a second header 52, respectively. The first header 51 is provided with a first pipe 511, and the second header 52 is provided with a second pipe 521. The first pipe 511 can be either a medium inlet or a medium outlet. When the first pipe 511 is the medium inlet, the second pipe 521 is the medium outlet. The medium enters the first header 51 through the first pipe 511, passes through the heat exchange tube 53, is heated, and then enters the second header 52 and exits through the second pipe 521. When the second pipe 521 is the medium inlet, the first pipe 511 is the medium outlet. The medium enters the second header 52 through the second pipe 521, passes through the heat exchange tube 5353, is heated, and then enters the first header 51 and exits through the first pipe 511. Temperature sensors 63 are provided in the first pipe 511 and / or the second pipe 521 to monitor the temperature of the medium exiting the furnace to control furnace operation. Preferably, temperature sensors 63 may be provided in both the first pipe 511 and the second pipe 521 , so that the temperature of the medium flowing into the heat exchange component 50 and the temperature of the medium flowing out of the heat exchange component 50 can be monitored.

[0030] For example, the controller is a PLC controller 61 , which is connected to a host computer system 62 via a communication port.

[0031] In the exemplary embodiment disclosed herein, the controller is a PLC controller 61. The temperature sensor 63 is connected to an input port of the PLC controller 61, and the electric heating element 40 is connected to an output port of the PLC controller 61. A communication port provided on the PLC controller 61 is signal-connected to a host computer system 62. The communication port of the PLC controller 61 is configured with various communication protocols, such as TCP / IP and Modbus RTU. The host computer system 62 can be a computer device located in a monitoring room and connected to the PLC controller 61 via an RJ45 cable. The PLC controller 61 can transmit device operating status, various sensor parameters, electric heating element 40 parameters, and power calculation data to the computer device. The computer device can send instructions to the PLC controller 61 as needed, thereby controlling the operation of the fire tube heating furnace with the help of the PLC controller 61. The host computer system 62 can also be an Internet of Things terminal, which is signal-connected to the PLC controller 61 via a wireless communication protocol, receives the device operating status information, various sensor parameters, electric heating element 40 parameters, and power calculation data sent by the PLC controller 61, and can view them in real time, facilitating centralized monitoring and unified management of the equipment.

[0032] For example, in the exemplary embodiment disclosed herein, a thermal insulation layer is provided on the exterior of the fire tube heating furnace housing 20. This insulation layer reduces heat dissipation from the energy storage assembly 30 and the heat exchange assembly 50, improving energy efficiency and reducing carbon emissions, thereby achieving energy conservation and environmental protection.

[0033] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0034] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0035] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An electrically heated energy storage fire tube heating furnace, characterized in that: It includes a shell, an energy storage component, an electric heating element, a heat exchange component and a control component, wherein the heat exchange component is arranged in the shell, and the control component is electrically connected to the electric heating element; The heat exchange assembly includes a first header, a second header, and a plurality of heat exchange tubes. The first header and the second header are respectively located at two ends of the shell. The heat exchange tubes communicate with the first header and the second header. The energy storage assembly is disposed in the shell at a first preset distance from the heat exchange tube along the direction of the first header and the second header, and the electric heating element is disposed in the shell at a second preset distance from the energy storage assembly.

2. The electrically heated energy storage fire tube heating furnace according to claim 1, characterized in that: Both ends of the plurality of heat exchange tubes are respectively disposed on the first header and the second header and arranged circumferentially. The plurality of heat exchange tubes are circumferentially arranged in the shell to form a first cavity.

3. The electrically heated energy storage fire tube heating furnace according to claim 2, characterized in that: The energy storage component is arranged in the first cavity, and the energy storage component includes energy storage bricks with heat storage capacity, and the energy storage bricks are stacked into a cylinder or a polygon.

4. The electrically heated energy storage fire tube heating furnace according to claim 3, characterized in that: A plurality of through holes are left on the end face of the energy storage component, and the through holes extend from one end of the energy storage component to the other end along the length direction of the energy storage component. The electric heating element extends from one end of the energy storage component into the through holes and extends to the other end of the energy storage component.

5. The electrically heated energy storage fire tube heating furnace according to claim 1, characterized in that: One end of the first header is provided with a first pipe communicating with the outside, and one end of the second header is provided with a second pipe communicating with the outside.

6. The electrically heated energy storage fire tube heating furnace according to claim 5, characterized in that: The control component includes a controller and a temperature sensor. The temperature sensor is electrically connected to the controller and is located in the first pipe and / or the second pipe. The electric heating element is electrically connected to the controller.

7. The electrically heated energy storage fire tube heating furnace according to claim 6, characterized in that: The controller is a PLC controller, and the PLC controller is connected to the host computer system signal through a communication port.

8. The electrically heated energy storage fire tube heating furnace according to claim 1, characterized in that: A heat-insulating layer is provided on the outside of the shell.

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