Vulcanization heating system for high-end electric vehicle tires
By employing a nitrogen circulation heating device and electric heating elements in the tire vulcanization system, the high energy consumption and equipment complexity of traditional steam heating have been solved, achieving a highly efficient and clean tire vulcanization process and reducing production costs and equipment maintenance difficulties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO ELJIN INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional steam-heated vulcanization plants suffer from high heat energy consumption, large equipment investment, large land area, serious pollution, and difficult equipment maintenance. Furthermore, the steam heating process is subject to heat loss and temperature unevenness.
Nitrogen circulation heating devices and electric heating elements are used to replace steam heating. Heat energy is provided in the vulcanizing machine through nitrogen circulation pipelines and electric heating elements, which simplifies the equipment structure, reduces steam auxiliary equipment, and improves energy utilization and equipment maintenance convenience.
It reduces the initial investment and operating costs of tire production, improves equipment uptime and vulcanization quality, reduces energy waste and equipment footprint, and realizes a clean energy vulcanization process.
Smart Images
Figure CN224335134U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tire vulcanization technology, specifically to a vulcanization heating system for high-end electric vehicle tires. Background Technology
[0002] In traditional steam-heated vulcanization plants, the vulcanization section is a high-heat workshop and a major consumer of heat energy. Because its heat source is high-temperature, high-pressure steam, auxiliary equipment such as boilers, softened water treatment facilities, and steam thermal pipelines must be built, resulting in long construction periods and high costs. Furthermore, boilers have proven to have low heat transfer efficiency. Statistics from tire factories show that steam consumption accounts for approximately 80% of their total energy consumption. Since steam is produced by boiler heating, tire factories need to calculate boiler construction investment, pipeline installation, and material investment from the initial construction phase. Additionally, because steam is easily condensed into water, causing heat loss, extensive insulation measures must be implemented. Steam pollution after tire vulcanization is also severe, requiring wastewater to pass through environmental protection equipment. Dust removal, pollution removal, waste gas removal, and waste residue removal must all meet standards, which necessitates a certain amount of factory space, and the cost of environmental protection equipment also constitutes a significant portion of the overall investment. These unavoidable factors pose serious challenges to tire manufacturers' land area, equipment investment, construction period, and operating costs, causing investment in vulcanization systems to account for approximately 25-30% of tire manufacturers' equipment investment.
[0003] Temperature is one of the three key factors for tire vulcanization, and currently, steam is the medium used to provide temperature to vulcanizing machines. Heat loss, leakage, and uneven internal / external temperature during steam heating have long plagued OEMs and end-users. Furthermore, the vulcanization process requires pressurizing the steam to create high-temperature, high-pressure steam. This high-temperature steam significantly impacts pipes, valves, and seals, requiring the equipment department to maintain a large stock of spare parts. The replacement process is extremely arduous, taking place in a high-temperature environment.
[0004] To address this, using electricity instead of steam to provide the appropriate temperature for the vulcanizing machine can reduce the initial investment in tire factory construction projects, lower the difficulty of equipment maintenance, and ensure better control of internal and external temperature uniformity, thus effectively improving the quality of tire products. Therefore, it is necessary to develop a tire vulcanizing heating system utilizing electric heating technology. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a vulcanization heating system for high-end electric vehicle tires, which replaces steam heating with electric heating, reduces the initial investment of tire factory construction projects, and brings direct benefits to customers in terms of equipment uptime, production costs, production efficiency and tire vulcanization quality.
[0006] The technical solution of this utility model is as follows:
[0007] The vulcanization heating system for high-end electric vehicle tires includes a nitrogen circulation heating device and electric heating elements installed on two hot plates inside the vulcanizing machine. The nitrogen circulation heating device includes a nitrogen circulation pipeline and a fresh nitrogen pipeline. The nitrogen circulation pipeline is connected to the bladder outlet of the vulcanizing machine, and the fresh nitrogen pipeline is connected to a booster. The nitrogen circulation pipeline and the fresh nitrogen pipeline are respectively connected to a nitrogen inlet pipeline. The nitrogen inlet pipeline is connected to a nitrogen heater and equipped with a fan. The nitrogen heater is connected to a heated nitrogen pipeline, which is equipped with a temperature sensor, a regulating valve, and a pressure sensor. The heated nitrogen pipeline is connected to the bladder inlet of the vulcanizing machine.
[0008] Preferably, the nitrogen heater is equipped with an electric heating element.
[0009] Preferably, the heating element is an electromagnetic coil.
[0010] Preferably, the capsule of the vulcanizing machine is mounted on a ring seat cylinder, and a temperature sensor and an electric heating element are installed inside the capsule on the ring seat cylinder.
[0011] Preferably, the heating element on the ring seat cylinder is an electric heating rod.
[0012] Preferably, pressure sensors are installed on the nitrogen circulation pipeline and the nitrogen inlet pipeline respectively.
[0013] Preferably, the heating elements on the hot plate are arranged in several independent areas of the hot plate.
[0014] Preferably, the hot plate includes an upper hot plate and a lower hot plate, with heating elements respectively disposed at the top of the upper hot plate and the bottom of the lower hot plate.
[0015] Compared with the prior art, this utility model has the following advantages:
[0016] This utility model discloses a high-end electric vehicle tire vulcanization heating system. Firstly, it directly generates heat energy through electric heating elements on a hot plate, eliminating the need for steam pipelines, boilers, and other steam-assisted equipment, significantly shortening the plant construction period. Direct energy conversion without a medium transmission structure results in high utilization efficiency and substantial energy savings compared to steam. Secondly, electrically heated nitrogen replaces low-pressure and high-pressure steam, reducing the types of media and their corresponding transport pipelines and controls. It also reduces the number of control valves and pipelines on each vulcanizing machine, allowing for more space under the vulcanizing machine for easier maintenance, lowering production costs, reducing space occupancy, simplifying the transport pipeline system, simplifying control and protection, reducing energy loss during long-distance pipeline transport, and reducing energy waste. Using nitrogen circulation for electric heating to provide the vulcanization temperature is clean energy, reduces pollution, and improves energy utilization, thus lowering overall tire production costs. In summary, this utility model replaces steam heating with electric heating, reducing the initial investment in tire plant construction projects and bringing direct benefits to customers in terms of equipment uptime, production costs, production efficiency, and tire vulcanization quality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a hot plate equipped with an electric heating element in the vulcanization heating system of a high-end electric vehicle tire according to this utility model.
[0018] Figure 2 This is a schematic diagram of the nitrogen circulation heating device in the vulcanization heating system of the high-end electric vehicle tire of this utility model.
[0019] In the diagram, 1. Hot plate; 2. Heating element; 3. Nitrogen circulation pipeline; 4. Fresh nitrogen pipeline; 5. Nitrogen inlet pipeline; 6. Nitrogen heater; 7. Fan; 8. Heated nitrogen pipeline; 9. Temperature sensor; 10. Regulating valve; 11. Pressure sensor. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model.
[0021] Example 1
[0022] like Figure 1As shown, this embodiment provides a vulcanization heating system for high-end electric vehicle tires, including heating elements 2 mounted on two hot plates 1 inside a vulcanizing machine. The hot plates 1 inside the vulcanizing machine include an upper hot plate 1 and a lower hot plate 1. The heating elements 2 are respectively mounted on the top of the upper hot plate 1 and the bottom of the lower hot plate 1. In this embodiment, the heating elements 2 are electromagnetic coils, which generate heat to heat the tire blank to reach the vulcanization temperature. Since the hot plates 1 are detachably mounted inside the vulcanizing machine using bolts, the heating elements 2 on the hot plates 1 should be staggered from the bolt mounting positions. That is, several mounting areas of the hot plates 1 divide the hot plates 1 into several independent areas, and the heating elements 2 are located within these independent areas, thereby preventing damage to the heating elements 2 during the disassembly and installation of the hot plates 1.
[0023] At the same time, such as Figure 2 As shown, the high-end electric vehicle tire vulcanization heating system of this embodiment also includes a nitrogen circulation heating device. This device heats nitrogen and then introduces the heated nitrogen into the vulcanizing machine to provide heat for the vulcanization of the tire blank, allowing it to reach the vulcanization temperature. Specifically, the nitrogen circulation heating device includes a nitrogen circulation pipeline 3 and a fresh nitrogen pipeline 4. A pressure sensor 11 is installed on the nitrogen circulation pipeline 3, which is connected to the bladder outlet of the vulcanizing machine. The fresh nitrogen pipeline 4 is connected to a booster. The nitrogen circulation pipeline 3 and the fresh nitrogen pipeline 4 are respectively connected to a nitrogen inlet pipeline 5. A pressure sensor 11 is installed on the nitrogen inlet pipeline 5. The nitrogen inlet pipeline 5 is connected to a nitrogen heater 6 and a fan 7. The nitrogen heater 6 is connected to a heated nitrogen pipeline 8, which is equipped with a temperature sensor 9, a regulating valve 10, and a pressure sensor 11. The heated nitrogen pipeline 8 is connected to the bladder inlet of the vulcanizing machine. The nitrogen heater 6 is equipped with an electric heating element 2, which can also be an electromagnetic coil, to heat the incoming nitrogen gas.
[0024] The circulating nitrogen from the vulcanizing machine bladder outlet mixes with the fresh nitrogen pressurized by the booster through nitrogen circulation line 3. Driven by fan 7, both gases enter the nitrogen heater 6 through nitrogen inlet line 5 for heating. Temperature sensor 9 detects the temperature of the heated nitrogen, ensuring it reaches a preset temperature to meet vulcanization requirements. Finally, the heated nitrogen enters the vulcanizing machine bladder through heating nitrogen line 8 to provide heat for the vulcanization of the tire carcass. The circulating nitrogen is low-pressure, while the pressurized fresh nitrogen is high-pressure. After mixing and heating, the nitrogen pressure is detected by pressure sensor 11 on heating nitrogen line 8, and adjusted to the required medium pressure (the medium pressure value can be preset in the control system) by regulating valve 10 before being introduced into the vulcanizing machine bladder.
[0025] Replacing traditional steam heating with electric heating eliminates the need for boilers, auxiliary equipment, and thermal valve systems, simplifying the piping layout at the rear of the equipment and reducing its footprint, thus effectively improving plant utilization. At the same time, the increased internal space and reduced leakage points increase the working space for maintenance personnel while reducing their labor intensity. This also effectively reduces the number of spare parts needed for factory maintenance, thereby lowering maintenance costs.
[0026] Meanwhile, the vulcanizing machine adopts nitrogen circulation electric heating technology, which uses nitrogen circulation and new nitrogen replenishment to regulate pressure, nitrogen boosting to drive circulation, high-pressure nitrogen heating temperature control, nitrogen depressurization to regulate medium pressure and the way nitrogen is supplied to the vulcanizing machine. This reduces the types of media and their corresponding conveying pipelines, reduces the control valves and pipelines of each vulcanizing machine, reduces the space occupation, and makes the space under the vulcanizing machine large, which is convenient for maintenance.
[0027] Example 2
[0028] Based on Example 1, the bladder of the vulcanizing machine is mounted on a ring seat cylinder. A temperature sensor 9 and a heating element 2, which can be an electric heating rod, are installed inside the bladder on the ring seat cylinder. When the temperature sensor 9 detects that the temperature of the heated nitrogen gas introduced into the bladder has not reached the vulcanization requirement, the electric heating rod can be activated to reheat the nitrogen gas inside the bladder until the required temperature is reached. This measure avoids the problem of the nitrogen circulation heating device malfunctioning and failing to provide the vulcanizing machine bladder with nitrogen at the required temperature, ensuring the smooth progress of the vulcanization process.
Claims
1. A vulcanization heating system for high-end electric vehicle tires, characterized in that, It includes a nitrogen circulation heating device and an electric heating element (2) installed on two hot plates (1) inside the vulcanizing machine. The nitrogen circulation heating device includes a nitrogen circulation pipeline (3) and a fresh nitrogen pipeline (4). The nitrogen circulation pipeline (3) is connected to the capsule outlet of the vulcanizing machine. The fresh nitrogen pipeline (4) is connected to a booster. The nitrogen circulation pipeline (3) and the fresh nitrogen pipeline (4) are respectively connected to the nitrogen inlet pipeline (5). The nitrogen inlet pipeline (5) is connected to a nitrogen heater (6) and is equipped with a fan (7). The nitrogen heater (6) is connected to a heated nitrogen pipeline (8). The heated nitrogen pipeline (8) is equipped with a temperature sensor (9), a regulating valve (10) and a pressure sensor (11). The heated nitrogen pipeline (8) is connected to the capsule inlet of the vulcanizing machine.
2. The vulcanization heating system for high-end electric vehicle tires as described in claim 1, characterized in that, The nitrogen heater (6) is equipped with an electric heating element (2).
3. The vulcanization heating system for high-end electric vehicle tires as described in claim 1 or 2, characterized in that, The heating element (2) is an electromagnetic coil.
4. The vulcanization heating system for high-end electric vehicle tires as described in claim 1, characterized in that, The capsule of the vulcanizing machine is mounted on a ring seat cylinder, and a temperature sensor (9) and an electric heating element (2) are installed inside the capsule on the ring seat cylinder.
5. The vulcanization heating system for high-end electric vehicle tires as described in claim 4, characterized in that, The heating element (2) on the ring seat cylinder is an electric heating rod.
6. The vulcanization heating system for high-end electric vehicle tires as described in claim 1, characterized in that, Pressure sensors (11) are respectively installed on the nitrogen circulation pipeline (3) and the nitrogen inlet pipeline (5).
7. The vulcanization heating system for high-end electric vehicle tires as described in claim 1, characterized in that, The heating elements (2) on the hot plate (1) are arranged in several independent areas of the hot plate (1).
8. The vulcanization heating system for high-end electric vehicle tires as described in claim 1, characterized in that, The hot plate (1) includes an upper hot plate (1) and a lower hot plate (1), and the electric heating elements (2) are respectively disposed at the top of the upper hot plate (1) and the bottom of the lower hot plate (1).