Environment-friendly heating device used before coupler installation and heating method of environment-friendly heating device
By using a coupling between a liquefied gas stove and a temperature control element to install a preheating device, the problems of difficult temperature control and environmental pollution are solved, achieving a highly efficient and environmentally friendly heating effect and meeting the energy-saving and environmental protection needs of modern industry.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA MCC22 GROUP CORP LTD
- Filing Date
- 2026-03-25
- Publication Date
- 2026-05-01
AI Technical Summary
Existing methods for heating couplings before installation are difficult to control the temperature precisely, and traditional heating methods cause serious environmental pollution and resource waste, making it difficult to meet the environmental protection and energy-saving requirements of modern industry.
Using a liquefied petroleum gas (LPG) stove as the heating source, combined with temperature measurement and control components, and adjusting the LPG output, the temperature of the heating oil can be precisely controlled. Using environmentally friendly LPG as an energy source improves heating efficiency and reduces energy consumption.
It achieves precise control of heating temperature, reduces pollutant emissions, improves heating efficiency, and reduces energy consumption, meeting environmental protection and energy-saving requirements.
Smart Images

Figure CN121953508A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of industrial construction technology, specifically relating to an environmentally friendly heating device and heating method for couplings before installation. Background Technology
[0002] With my country's increasing emphasis on environmental protection and resource conservation, environmental awareness among various industries and the public is constantly strengthening. Couplings, as indispensable key components in various industrial construction projects, are typically connected to shafts using an interference fit.
[0003] Currently, a traditional method is commonly used in China for heating couplings before installation: heating oil is poured into a container, the coupling is submerged in it, and then the oil is heated by burning waste wood, causing the coupling to expand and meet assembly requirements. However, this method has significant drawbacks: firstly, the heating temperature is difficult to control precisely, affecting assembly quality; secondly, it consumes a large amount of wood, and the combustion process generates smoke and pollutants, which is detrimental to environmental protection. If electric heating is used, the required heating capacity is large, resulting in low heating efficiency and high electricity consumption, making it uneconomical. With increasingly stringent national requirements for environmental protection and resource conservation, this traditional method is no longer sufficient to meet the needs of modern industrial development. Summary of the Invention
[0004] To effectively improve heating efficiency while taking into account energy conservation and environmental protection requirements, this invention proposes an environmentally friendly heating method suitable for use before coupling installation.
[0005] The technical solution adopted by the present invention to solve the aforementioned problem is as follows: An environmentally friendly heating device for coupling installation includes: A heating container includes legs, a support plate fixedly disposed above the legs, and a vessel disposed on the support plate, the vessel being used to hold heating oil and a coupling to be heated; The heating source is a liquefied petroleum gas (LPG) stove, which is located below the support plate and connected to the LPG cylinder. A temperature measuring element is used to measure the temperature of the heating oil inside the vessel; The temperature control element controls the output of liquefied gas, thereby regulating the rate of temperature rise of the heating oil.
[0006] Compared with the prior art, the present invention employing the above structure has the following advantages: This solution uses liquefied petroleum gas for heating, which is green and environmentally friendly, facilitates the control of energy output, saves energy, improves heating efficiency, reduces power consumption, and saves operating costs.
[0007] Furthermore, the support plate has a through hole at its geometric center, the diameter of which is smaller than the diameter of the vessel, and several strip-shaped reinforcing ribs are arranged radially outward from the through hole on the lower surface of the support plate.
[0008] Furthermore, the support plate includes several rings, with the inner rings nested within the inner edge of the outer rings.
[0009] Furthermore, a lifting platform is installed at the bottom of the liquefied gas stove.
[0010] Furthermore, the temperature measuring element is a thermometer.
[0011] Furthermore, the temperature control element is the regulating switch valve that comes with the liquefied gas stove.
[0012] The present invention also provides an environmentally friendly heating method for couplings before installation, which utilizes the environmentally friendly heating device for couplings before installation described in any of the above claims, and includes the following steps: Step S1: Weld and fix the legs and support plate, and place the vessel on the support plate after welding it into shape. Step S2: Place the LPG stove under the support plate and connect it to the LPG cylinder; Step S3: Pour heating oil into the container and place the coupling to be heated into the heating oil; Step S4: Light the liquefied gas stove to heat the vessel; Step S5: Monitor the oil temperature in real time using a temperature measuring element, and adjust the temperature control element according to the oil temperature to keep the oil temperature stable; Step S6: When the coupling reaches the heating conditions required for installation, remove the coupling and install it; Step S7: After heating is complete, turn off the temperature control element.
[0013] Furthermore, in step S1, after the coupling is placed inside the vessel, the heating oil level is positioned 500mm-800mm from the top of the vessel.
[0014] Furthermore, in step S5, the output of liquefied gas is controlled by adjusting the temperature control element to maintain the oil temperature within the preset heating temperature range.
[0015] The heating temperature range is 90℃~120℃. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded view of the heating container portion of the coupling of the present invention; Figure 3 This is a schematic diagram of the coupling placed in the vessel of the present invention; Figure 4 This is a schematic diagram of removing the coupling according to the present invention; Figure 5 This is a structural diagram of the lifting seat of the present invention; Figure 6 This is a schematic diagram illustrating the height adjustment of the LPG stove according to the present invention.
[0017] The markings in the diagram are as follows: 1-Outrigger; 2-Support plate; 21-Support ring; 3-Utensil; 4-Liquefied gas stove; 5-Heating oil; 6-Coupling; 7-Temperature control element; 8-Temperature measuring element; 9-Lifting seat; 91-Floating plate; 92-Telescopic cylinder; 93-Conduit; 94-Guide rod; 95-Fixing plate. Detailed Implementation
[0018] The present invention will be further described below with reference to embodiments, which are intended only to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.
[0019] See Figures 1 to 6 This invention provides an environmentally friendly heating device for coupling installation. The device consists of two parts: a heating container and a heating source. The specific structure of the two parts is described in detail below.
[0020] The heating container consists of legs 1, a support plate 2, and a vessel 3.
[0021] Outrigger 1 is made of four H-beams.
[0022] The support plate 2 is made of steel plate and is fixed to the support leg 1. A through hole is provided at the geometric center of the support plate 2. The diameter of the through hole is smaller than the diameter of the vessel 3. Several strip-shaped reinforcing ribs are arranged radially outward from the through hole on the lower surface of the support plate 2.
[0023] As a variation of the support plate 2, the support plate 2 includes several support rings 21. The inner support ring 21 is nested inside the inner edge of the outer support ring 21. The outer support ring 21 is adapted to larger vessels, and the inner support ring 21 is adapted to smaller vessels 3. The appropriate capacity vessel 3 is selected and matched with the corresponding diameter support ring 21 according to the number of couplings 6 to be heated, so that this device can be used for vessels of different capacities and reduce heat energy waste.
[0024] The vessel 3 is used to hold the heating oil 5 and the coupling 6 to be heated. Optionally, the vessel is made of φ720 or φ820 steel pipe, with a sealed bottom plate fixed to the bottom, and the whole is made of carbon steel.
[0025] The heating source is a liquefied petroleum gas stove 4, which is located below the support plate 2 and connected to a liquefied petroleum gas cylinder (not shown in the figure).
[0026] Temperature measuring element 8, optionally a thermometer, is used to measure the oil temperature inside the vessel 3.
[0027] Temperature control element 7, specifically the regulating switch valve of liquefied gas stove 4, controls the output of liquefied gas to regulate the heating rate of heating oil 5.
[0028] The liquefied petroleum gas stove 4 has a lifting base 9 at its bottom. The lifting base 9 includes a floating plate 91 and a fixed plate 95, with a telescopic cylinder 92 positioned between the floating plate 91 and the fixed plate 95. Around the telescopic cylinder 92, on the surfaces of the floating plate 91 and the fixed plate 95 opposite each other, there are guide tubes 93 and guide rods 94. The guide tubes 93 and guide rods 94 are fitted together and can move relative to each other. The lifting base 9 adjusts its height according to the current flame size of the liquefied petroleum gas stove 4, keeping the vessel 3 in contact with the upper flame of the flame, thus improving energy utilization.
[0029] This embodiment provides an environmentally friendly heating method for couplings before installation, utilizing the aforementioned environmentally friendly heating device for coupling installation. Specifically, it includes the following steps, which can be combined with... Figures 1 to 6 understand: Step S1: Weld the support leg 1 to the support plate 2 and fix it in place. Weld the vessel 3 into shape and place it on the support plate 2. Step S2: Place the LPG stove 4 below the support plate 2 and connect it to the LPG cylinder.
[0030] Step S3: Pour heating oil 5 into container 3 and place the coupling 6 to be heated into the heating oil 5; Step S4: Ignite the liquefied gas stove 4 to heat the vessel 3; Step S5: Use the temperature measuring element 8 to monitor the oil temperature in real time, and adjust the temperature control element 7 according to the oil temperature to keep the oil temperature stable; Step S6: When the coupling 6 reaches the heating conditions required for installation, remove the coupling 6 and install it; Step S7: After heating is complete, turn off the temperature control element 7.
[0031] Specifically, after the coupling 6 is placed inside the vessel 3, the level of the heating oil 5 is 500mm-800mm from the top of the vessel 3.
[0032] Optionally, the heating temperature range is 90℃~120℃.
[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.
Claims
1. An environmentally friendly heating device for coupling installation, characterized in that, include: The heating container includes a support leg (1), a support plate (2) fixedly mounted on the support leg (1), and a vessel (3) mounted on the support plate (2), the vessel (3) being used to hold heating oil (5) and a coupling (6) to be heated; The heating source is a liquefied gas stove (4), which is located below the support plate (2) and connected to the liquefied gas cylinder; Temperature measuring element (8) is used to measure the oil temperature of the heating oil (5) inside the vessel (3); Temperature control element (7) controls the output of liquefied gas to regulate the rate of temperature rise of heating oil (5).
2. The environmentally friendly heating device before coupling installation according to claim 1, characterized in that, The support plate (2) has a through hole at its geometric center. The diameter of the through hole is smaller than the diameter of the vessel (3). Several strip-shaped reinforcing ribs are arranged radially outward from the through hole on the lower surface of the support plate (2).
3. The environmentally friendly heating device before coupling installation according to claim 1, characterized in that, The support plate (2) includes several rings (21), with the inner rings (21) nested inside the outer rings (21).
4. The environmentally friendly heating device before coupling installation according to claim 1, characterized in that, The bottom of the liquefied gas stove (4) is equipped with a lifting seat (9).
5. The environmentally friendly heating device before coupling installation according to claim 1, characterized in that, The temperature measuring element (8) is a thermometer.
6. The environmentally friendly heating device before coupling installation according to claim 1, characterized in that, The temperature control element (7) is the regulating switch valve that comes with the liquefied gas stove (4).
7. An environmentally friendly heating method for couplings before installation, characterized in that, The installation of the coupling using the environmentally friendly heating device described in any one of claims 1 to 6 includes the following steps: Step S1: Weld the support leg (1) to the support plate (2) and place the vessel (3) on the support plate (2) after welding it into shape. Step S2: Place the liquefied gas stove (4) below the support plate (2) and connect it to the liquefied gas cylinder; Step S3: Pour heating oil (5) into the vessel (3) and place the coupling (6) to be heated into the heating oil (5); Step S4: Ignite the liquefied gas stove (4) to heat the vessel (3); Step S5: Use the temperature measuring element (8) to monitor the oil temperature in real time, and adjust the temperature control element (7) according to the oil temperature to keep the oil temperature stable; Step S6: When the coupling (6) reaches the heating conditions required for installation, remove the coupling (6) and install it; Step S7: After heating is complete, turn off the temperature control element (7).
8. The environmentally friendly heating method for couplings before installation according to claim 7, characterized in that, In step S1, after the coupling (6) is placed inside the vessel (3), the level of the heating oil (5) is 500mm-800mm away from the top of the vessel (3).
9. The environmentally friendly heating method for couplings before installation according to claim 7, characterized in that, In step S5, the output of liquefied gas is controlled by adjusting the temperature control element (7) so that the oil temperature is maintained within the preset heating temperature range.
10. The environmentally friendly heating method for couplings before installation according to claim 9, characterized in that, In step S5, the heating temperature range is 90℃~120℃.