A water jacket furnace with an external electric heating system
By using an external electric heating system with aluminum electric heating modules and an intelligent controller, the problems of low heating efficiency, high safety risks, and complex modification of traditional water jacket furnaces have been solved, achieving efficient, safe, and intelligent heating control and management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI DELIHENG THERMAL ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-19
Smart Images
Figure CN224381776U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water jacket furnace heating technology, specifically to a water jacket furnace with an external electric heating system. Background Technology
[0002] In existing technologies, traditional natural gas / oil-fired water jacket boilers have significant drawbacks in practical applications: In terms of energy efficiency, the combustion thermal efficiency is usually below 90%, resulting in incomplete combustion and flue gas heat loss; in terms of environmental protection, combustion emits pollutants such as CO, NOx, and SOx, failing to meet the "dual carbon" targets and environmentally sensitive area requirements; in terms of safety and maintenance, there are risks of gas leakage and explosion, requiring regular burner maintenance, which is costly and affects production continuity; and in terms of gas source dependence, gas supply stability is poor in remote areas, and fuel price fluctuations lead to uncontrollable operating costs.
[0003] Existing electric heating retrofit technologies involve directly adding electric heating tubes to the original furnace body. These tubes are tubular heating elements made by placing resistance wires inside a metal tube and tightly filling the surrounding gaps with crystalline magnesium oxide powder, which has good heat resistance, thermal conductivity, and insulation. The elements are then processed through other techniques. However, this electric heating method significantly alters the structure of the water jacket furnace, involves complex retrofitting processes, and poses high safety risks during on-site welding, especially in oil and gas fields. Furthermore, it suffers from uneven medium temperature distribution and insufficient heating efficiency. Therefore, there is an urgent need for a water jacket furnace with an external electric heating system. Utility Model Content
[0004] In view of the shortcomings of the existing technology, this utility model provides a water jacket furnace with an external electric heating system.
[0005] This utility model discloses a water jacket furnace with an external electric heating system, including a water jacket furnace body and an electric heating system;
[0006] The electric heating system includes an aluminum electric heating module, a circulating pump, a temperature detection module, and a control module. The aluminum electric heating module, the circulating pump, and the temperature detection module are all electrically connected to the control module.
[0007] The water inlet of the aluminum electric heating module is connected to the bottom drain outlet of the water jacket furnace body through a water inlet pipeline, and the circulating pump is installed on the water inlet pipeline; the water outlet of the aluminum electric heating module is connected to the top water inlet of the water jacket furnace body through a water outlet pipeline.
[0008] The temperature detection module is used to detect the water temperature at the inlet and outlet of the aluminum electric heating module.
[0009] As a further improvement of this utility model, the electric heating system also includes a control box, which is located outside the water jacket furnace body. The control module is installed in the upper layer inside the control box, and the aluminum electric heating module and temperature detection module are installed in the lower layer inside the control box. The circulating pump is located outside the control box or in the lower layer inside the control box.
[0010] As a further improvement of this utility model, the front of the control box is provided with an upper cabinet door and a lower cabinet door corresponding to the upper and lower internal layers, respectively; the upper cabinet door is provided with a display screen and a button unit, and the display screen and button unit are electrically connected to the control module; the display screen is used to display the water temperature at the inlet and outlet of the aluminum electric heating module, the operating status of the aluminum electric heating module, and alarm information.
[0011] As a further improvement of this utility model, the aluminum electric heating module is a die-cast aluminum electric heater, and the temperature detection module includes a first temperature probe and a second temperature probe.
[0012] The first and second temperature probes are respectively installed on the pipelines connected to the water inlet and water outlet of the die-cast aluminum electric heater.
[0013] As a further improvement of this utility model, a three-way pipe is also included;
[0014] The first port of the three-way pipe is connected to the bottom drain port of the water jacket furnace body, the second port of the three-way pipe is connected to the drain valve, and the third port of the three-way pipe is connected to the water inlet of the die-cast aluminum electric heater through the water inlet pipeline.
[0015] As a further improvement of this utility model, it also includes a flow switch; the flow switch is installed on the inlet pipe on the outlet side of the circulating pump and is electrically connected to the control module.
[0016] As a further improvement of this utility model, the control module includes an intelligent controller.
[0017] As a further improvement of this utility model, the control module also includes a 4G module, which is electrically connected to the intelligent controller, and the intelligent controller communicates with the user's mobile phone through the 4G module.
[0018] As a further improvement of this utility model, the water jacket furnace body is a horizontal water jacket furnace or a vertical water jacket furnace.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] This utility model uses an independently set external electric heating system to connect the aluminum electric heating module to the water jacket furnace body through pipelines, avoiding major modifications to the furnace structure, simplifying the modification process, and reducing the safety risks of on-site construction in oil fields, gas fields, and other areas.
[0021] This invention achieves precise monitoring and control of water temperature through the coordinated operation of an aluminum electric heating module, a circulating pump, a temperature detection module, and a control module. Compared with traditional heating methods and existing electric heating retrofit technologies, it effectively solves the problems of uneven medium temperature distribution and insufficient heating efficiency.
[0022] This invention employs a die-cast aluminum electric heater as the aluminum electric heating module, along with first and second temperature probes to monitor the inlet and outlet temperatures in real time. This enables rapid and stable heating of the medium, improving heating efficiency and energy utilization. Simultaneously, by installing a flow switch electrically connected to the control module on the inlet pipeline of the circulating pump outlet, the medium flow rate can be precisely controlled, making the heating process more stable and efficient, further enhancing the system's controllability and energy utilization efficiency.
[0023] This utility model features a control module, an aluminum electric heating module, and a temperature detection module installed in layers inside the control box. The control box also has upper and lower cabinet doors on the front, creating a rational layout that facilitates equipment installation, maintenance, and operation. The display screen and button unit on the upper cabinet door allow operators to intuitively monitor the equipment's operating status and perform control.
[0024] This invention connects the bottom drain port, drain valve, and water inlet of the die-cast aluminum electric heater to the water jacket furnace body via a three-way pipe, ensuring smooth medium circulation in the electric heating system without affecting the drain function of the water jacket furnace.
[0025] This utility model enables communication with the user's mobile phone by combining the intelligent controller in the control module with the 4G module, supporting remote monitoring and operation. This allows users to keep track of the equipment's operating status in real time, remotely handle equipment malfunctions, and improve the convenience and intelligence of equipment management. Attached Figure Description
[0026] Figure 1 This is a schematic diagram showing the connection between a horizontal water jacket furnace with an external electric heating system and an electric heating system, according to one embodiment of the present invention.
[0027] Figure 2 This is a schematic diagram illustrating the connection between a vertical water jacket furnace with an external electric heating system and an electric heating system, according to one embodiment of the present invention.
[0028] Figure 3 This is a schematic diagram of the electric heating system of a water jacket furnace with an external electric heating system disclosed in one embodiment of the present invention;
[0029] Figure 4 This is a front view of the control box of a water jacket furnace with an external electric heating system disclosed in one embodiment of the present invention;
[0030] Figure 5 This is a side view of the structure of the control box of a water jacket furnace with an external electric heating system disclosed in one embodiment of the present invention;
[0031] Figure 6 This is a schematic diagram of the electric heating system of a water jacket furnace with an external electric heating system, as disclosed in another embodiment of the present invention.
[0032] In the picture:
[0033] 1. Water jacket furnace body; 1-1. Top water inlet; 1-2. Bottom drain outlet; 2. Electric heating system; 2-1. Control box; 2-11. Upper cabinet door; 2-12. Lower cabinet door; 2-13. Lifting lug; 2-14. Rain cover; 2-2. Die-cast aluminum electric heater; 2-3. Circulation pump; 2-4. Water flow switch; 2-5. First temperature probe; 2-6. Second temperature probe; 2-7. Display screen; 2-8. Button unit; 3. Water inlet pipeline; 4. Water outlet pipeline; 5. T-pipe; 6. Drain valve. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0037] The present invention will now be described in further detail with reference to the accompanying drawings:
[0038] like Figure 1-2 As shown, a water jacket furnace with an external electric heating system provided by this utility model includes a water jacket furnace body 1 and an electric heating system 2. The electric heating system 2 includes an aluminum electric heating module, a circulating pump 2-3, a temperature detection module, and a control module. The aluminum electric heating module, the circulating pump 2-3, and the temperature detection module are electrically connected to the control module. The water inlet of the aluminum electric heating module is connected to the bottom drain outlet 1-2 of the water jacket furnace body 1 through a water inlet pipeline 3. The circulating pump 2-3 is installed on the water inlet pipeline 3. The water outlet of the aluminum electric heating module is connected to the top water inlet 1-1 of the water jacket furnace body 1 through a water outlet pipeline 4. The temperature detection module is used to detect the water temperature at the water inlet and outlet of the aluminum electric heating module.
[0039] Specifically:
[0040] like Figure 1-2 As shown, in the above embodiments, preferably, the water jacket furnace body 1 is a horizontal water jacket furnace or a vertical water jacket furnace.
[0041] like Figure 3-5 As shown, in the above embodiment, preferably, the electric heating system 2 further includes a control box 2-1, which is placed outside the water jacket furnace body 1. The control box 2-1 is arranged in upper and lower layers inside, with the control module installed on the upper layer and the aluminum electric heating module and temperature detection module installed on the lower layer inside the control box 2-1; the circulating pump 2-3 is placed outside the control box 2-1.
[0042] In the above embodiment, preferably, the front of the control box 2-1 is provided with an upper cabinet door 2-11 and a lower cabinet door 2-12 corresponding to the upper and lower internal layers, respectively; the upper cabinet door 2-11 is provided with a display screen 2-7 and a button unit 2-8, which are electrically connected to the control module; the display screen 2-7 is used to display the water temperature at the inlet and outlet of the aluminum electric heating module, the operating status of the aluminum electric heating module, and alarm information.
[0043] In the above embodiments, preferably, the button units 2-8 adopt explosion-proof buttons, explosion-proof changeover switches and other control components, and the electrical connections are made of galvanized steel pipes and explosion-proof flexible hoses; the structure is safe and reliable.
[0044] In the above embodiments, preferably, the top of the control box 2-1 is provided with a rain cover 2-14 and a lifting lug 2-13 for easy hoisting, and the bottom of the control box 2-1 is welded with a base.
[0045] In the above embodiments, preferably, the aluminum electric heating module is a die-cast aluminum electric heater 2-2, and the temperature detection module includes a first temperature probe 2-5 and a second temperature probe 2-6; wherein, the first temperature probe 2-5 and the second temperature probe 2-6 are respectively installed on the pipelines connected to the water inlet and water outlet of the die-cast aluminum electric heater 2-2.
[0046] In the above embodiments, preferably, the die-cast aluminum electric heater 2-2 uses die-cast aluminum as the heat-conducting shell, with a built-in high-temperature resistance wire, and is formed by compression process.
[0047] In the above embodiments, preferably, the gas-fired hot water boiler is an indirect heating system, which suffers from various heat losses, such as flue gas heat loss and incomplete combustion heat loss, while the die-cast aluminum electric heater 2-2 is a direct heating system with less heat loss.
[0048] In the above embodiments, preferably, a three-way pipe 5 is also included; the first port of the three-way pipe 5 is connected to the bottom drain port 1-2 of the water jacket furnace body 1, the second port of the three-way pipe 5 is connected to the drain valve 6, and the third port of the three-way pipe 5 is connected to the water inlet of the die-cast aluminum electric heater 2-2 through the water inlet pipeline 3.
[0049] In the above embodiments, preferably, a flow switch is also included; the flow switch is installed on the inlet pipe 3 on the outlet side of the circulating pump and is electrically connected to the control module.
[0050] In the above embodiments, preferably, the control module includes an intelligent controller.
[0051] In the above embodiments, preferably, the control module further includes a 4G module, which is electrically connected to the intelligent controller, and the intelligent controller communicates with the user's mobile phone through the 4G module.
[0052] In the above embodiment, preferably, the main power supply and control power supply of the die-cast aluminum electric heater 2-2 enter from the upper right side of the control box 2-1. The wiring from the control module to the die-cast aluminum electric heater 2-2 enters from the upper box through the middle wiring hole and connects to the upper terminal of the die-cast aluminum electric heater 2-2. In this embodiment, all wiring inside the control box 2-1 is high-temperature resistant wire; the heating power of the die-cast aluminum electric heater 2-2 is adjustable in four levels, and the outlet water temperature can be set according to requirements. The control system has a remote monitoring module, which allows for remote monitoring of system operation data via mobile phone.
[0053] In the above embodiments, preferably, valves are installed on both the inlet pipe 3 and the outlet pipe 4 for shut-off maintenance; the inlet pipe 3, the outlet pipe 4, and the valves are all insulated with rubber and plastic and wrapped with galvanized iron sheet.
[0054] In the above embodiments, preferably, the control box 2-1 is an explosion-proof control box.
[0055] like Figure 6 As shown, this is another embodiment of the present invention. In this embodiment, only the installation positions of the circulating pump 2-3 and the flow switch 2-4 are changed, and the rest are the same as in the first embodiment.
[0056] In the above embodiment, preferably, the circulating pump 2-3 and the flow switch 2-4 are both installed inside the lower layer of the control box 2-1. A stainless steel flexible metal hose is provided on the outlet side of the circulating pump 2-3 to achieve a flexible connection with the die-cast aluminum electric heater 2-2, and the flow switch 2-4 is installed on the inlet pipe 3 to provide overheat protection in case of insufficient flow. In this embodiment, by integrating the circulating pump 2-3 into the control box 2, the floor space is reduced while the system integration is improved.
[0057] Advantages of this utility model:
[0058] This utility model uses an independently set external electric heating system to connect the aluminum electric heating module to the water jacket furnace body 1 through pipelines, avoiding major modifications to the furnace structure, simplifying the modification process, and reducing the safety risks of on-site construction in oil fields, gas fields, and other areas.
[0059] This invention achieves precise monitoring and control of water temperature through the coordinated operation of an aluminum electric heating module, circulating pumps 2-3, a temperature detection module, and a control module. Compared with traditional heating methods and existing electric heating retrofit technologies, it effectively solves the problems of uneven medium temperature distribution and insufficient heating efficiency.
[0060] This invention employs a die-cast aluminum electric heater 2-2 as the aluminum electric heating module, along with a first temperature probe 2-5 and a second temperature probe 2-6 to monitor the inlet and outlet temperatures in real time. This enables rapid and stable heating of the medium, improving heating efficiency and energy utilization. Simultaneously, by installing a flow switch 2-4 electrically connected to the control module on the inlet pipeline 3 on the outlet side of the circulating pump 2-3, the flow rate of the medium can be precisely controlled, making the heating process more stable and efficient, further enhancing the system's controllability and energy utilization efficiency.
[0061] This utility model features a control module, an aluminum electric heating module, and a temperature detection module installed in layers within the control box 2-1. Additionally, upper and lower cabinet doors are provided on the front of the control box, creating a rational layout that facilitates equipment installation, maintenance, and operation. The display screen 2-7 and button unit 2-8 on the upper cabinet door 2-11 allow operators to intuitively monitor the equipment's operating status and perform control.
[0062] This utility model connects the bottom drain port 1-2 of the water jacket furnace body 1, the drain valve 6, and the water inlet of the die-cast aluminum electric heater by setting a three-way pipe 5. This ensures smooth medium circulation of the electric heating system without affecting the drain function of the water jacket furnace.
[0063] This utility model enables communication with the user's mobile phone by combining the intelligent controller in the control module with the 4G module, supporting remote monitoring and operation. This allows users to keep track of the equipment's operating status in real time, remotely handle equipment malfunctions, and improve the convenience and intelligence of equipment management.
[0064] This invention has been proven through testing to increase thermal efficiency from 60-70% in traditional combustion heating to 90-95%, increase heating speed by about 25-30%, achieve precise temperature control to reduce energy waste, eliminate the risk of fuel leakage, and eliminate combustion exhaust emissions (CO2, NOx, SOx, etc.).
[0065] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A water jacket furnace having an external electric heating system, comprising a water jacket furnace body, characterized by, It also includes an electric heating system; The electric heating system includes an aluminum electric heating module, a circulating pump, a temperature detection module, and a control module. The aluminum electric heating module, the circulating pump, and the temperature detection module are all electrically connected to the control module. The water inlet of the aluminum electric heating module is connected to the bottom drain outlet of the water jacket furnace body through a water inlet pipeline, and the circulating pump is installed on the water inlet pipeline; The outlet of the aluminum electric heating module is connected to the top water inlet of the water jacket furnace body via an outlet pipeline. The temperature detection module is used to detect the water temperature at the inlet and outlet of the aluminum electric heating module.
2. The jacketed furnace of claim 1, wherein The electric heating system also includes a control box, which is located outside the water jacket furnace body. The control module is installed in the upper part of the control box, and the aluminum electric heating module and temperature detection module are installed in the lower part of the control box. The circulating pump is located outside the control box or in the lower part of the control box.
3. The jacketed furnace of claim 2, wherein, The control box has an upper cabinet door and a lower cabinet door on the front, corresponding to the upper and lower internal layers, respectively. The upper cabinet door is equipped with a display screen and a button unit, which are electrically connected to the control module. The display screen is used to display the water temperature at the inlet and outlet of the aluminum electric heating module, the operating status of the aluminum electric heating module, and alarm information.
4. The jacketed furnace of claim 1, wherein The aluminum electric heating module is a die-cast aluminum electric heater, and the temperature detection module includes a first temperature probe and a second temperature probe. The first and second temperature probes are respectively installed on the pipelines connected to the water inlet and water outlet of the die-cast aluminum electric heater.
5. The jacketed furnace of claim 4, wherein, It also includes tee pipes; The first port of the three-way pipe is connected to the bottom drain port of the water jacket furnace body, the second port of the three-way pipe is connected to the drain valve, and the third port of the three-way pipe is connected to the water inlet of the die-cast aluminum electric heater through the water inlet pipeline.
6. The water-jacketed boiler according to claim 1, characterized in that, It also includes a flow switch; the flow switch is installed on the inlet pipe on the outlet side of the circulating pump and is electrically connected to the control module.
7. The water-jacketed boiler according to claim 1, characterized in that, The control module includes an intelligent controller.
8. The jacketed furnace of claim 7, wherein, The control module also includes a 4G module, which is electrically connected to the smart controller. The smart controller communicates with the user's mobile phone through the 4G module.
9. The jacketed furnace of claim 1, wherein, The water jacket furnace body is a horizontal water jacket furnace or a vertical water jacket furnace.