Mobile heating method

Abstract

The present invention discloses a mobile heating method, which aims to solve the problem of traditional steam supply methods, which are mostly transmitted through pipelines. However, when the distance between the heat source and the heat user is too long, the pipeline investment cost is high, the planning and approval is difficult, and the construction period is long, which will seriously restrict the development of the heating business. The invention includes the following steps: S1, leading out a branch pipe from the heat source steam pipeline and connecting a steam distribution pipe to the branch pipe, and installing a number of gas pipes on the steam distribution pipe; S2, driving a heating vehicle to the steam distribution pipe position, connecting the heating vehicle to the gas pipe, and charging steam into the heating vehicle through the gas pipe; S3, after the heating vehicle completes the steam charging, it drives to the user end position, connects the heating vehicle to the pipeline at the user end, and transports the steam in the heating vehicle to the pipeline at the user end, thereby realizing mobile heating. This mobile heating method can realize the long-distance distribution of heat energy without a pipeline network, saves the cost of laying the pipeline network, and shortens the construction period.

Description

Technical Field

[0001] The present invention relates to the technical field of steam heating, and more particularly to a mobile heating method. Background Art

[0002] my country boasts abundant industrial waste heat resources, primarily including waste heat from high-temperature exhaust gases, cooling media, waste steam and wastewater, waste heat from high-temperature products and slag, and waste heat from chemical reactions. According to industry data, waste heat resources across various industries account for approximately 17% to 67% of their total fuel consumption, with a recoverable rate of 60%. This represents significant room for improvement in waste heat utilization and enormous energy-saving potential. The government has introduced several preferential policies for waste heat utilization, providing favorable conditions and a solid foundation for the future of this burgeoning industry: energy conservation and environmental protection.

[0003] Traditional waste-to-energy plants, due to their remote locations and limited proximity to heat users, can only dissipate the heat generated by waste incineration through power generation. However, the overall thermal efficiency of waste-to-energy power generation is only 23% to 32%, meaning that 68% to 77% of the heat is released into the atmosphere. This not only wastes heat and impacts the surrounding environment, but also consumes significant amounts of water during the power plant cooling process. Therefore, if the heat energy from waste-to-energy plants could be supplied directly to heat users, not only would the overall heat utilization rate from waste incineration be increased to 80%, reducing heat dissipation, water consumption, and electricity consumption within the waste-to-energy plant, but it could also displace heat from surrounding small boiler users, further reducing emissions of flue gas and other pollutants. This could increase the profitability of waste-to-energy plants and reduce heating costs for heat users. Traditional steam supply methods typically involve pipelines, but when the distance between the heat source and heat users is long, pipeline investment costs are high, planning and approval are difficult, and construction times are long, severely hindering the development of heat supply services. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings, the present invention provides a mobile heating method, which can realize long-distance distribution of heat energy without pipelines, save the cost of laying pipelines, shorten the construction period, and has great market potential in demand scenarios such as decentralized users and emergency heat sources.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: a mobile heating method, comprising the following steps:

[0006] S1, lead out a branch pipe from the heat source steam pipeline and connect it to a steam distribution pipe, and install several gas pipes on the steam distribution pipe;

[0007] S2, driving the heating vehicle to the steam distribution pipe, connecting the heating vehicle to the gas pipe, and charging steam into the heating vehicle through the gas pipe;

[0008] S3, after the heating vehicle is filled with steam, it is driven to the user's end location, and the heating vehicle is connected to the pipeline at the user's end, so that the steam in the heating vehicle is transported to the pipeline at the user's end, realizing mobile heating.

[0009] Mobile heating vehicles are used to store, transport, and release thermal energy, enabling pipe-free, long-distance heat distribution. High-efficiency, energy-storage mobile heating vehicles can absorb and store waste heat from high-energy-consuming units such as thermal power plants, steel, coking, cement, rubber, chemicals, and glass, and then transport it to heat users in industries with heat needs, such as industry, food, textiles, hotels, government agencies and schools, agriculture, aquaculture, and residential heating, to complete the release and supply. Mobile heating complies with national energy conservation, environmental protection, and energy industry policies, enabling the pipe-free transport of high-temperature steam. It is suitable for heat users far from the heat source, with a theoretical heating radiation radius of 30 km. The heating parameters are adjustable, and the equipment is simple to operate. The mobile heating device has good insulation and a relatively small temperature drop. This mobile heating method enables pipe-free, long-distance heat distribution, eliminating the cost of laying out a pipe network and shortening the construction period. It has great market potential in scenarios requiring decentralized users and emergency heat sources.

[0010] Preferably, at least two heating vehicles are provided. Before the steam in one heating vehicle is used up, another heating vehicle is connected to the pipeline at the user end to transport steam, so that the heating vehicle can continuously transport steam to the pipeline at the user end.

[0011] At least two heating vehicles can provide uninterrupted heating to the user end, ensuring stable and reliable heating at the user end.

[0012] Preferably, a main air outlet valve is installed on the branch pipe; when the main air outlet valve is opened, steam is transported to the steam distribution pipe through the heat source steam pipeline.

[0013] The main outlet valve facilitates the control of steam delivery to the steam distribution pipe.

[0014] As a preference, a gas valve and an electric regulating valve are installed on the gas pipeline; in the process of S2 charging steam into the heating vehicle through the gas pipeline, the opening of the electric regulating valve is adjusted to adjust the flow rate.

[0015] During the process of filling steam into the heating vehicle, the airflow can be turned on and off and the flow rate can be adjusted.

[0016] Preferably, a control cabinet is arranged at the steam distribution pipe, and the electric regulating valves are electrically connected to the control cabinet.

[0017] The electric regulating valve is controlled through the control cabinet, which is accurate and reliable.

[0018] Preferably, a pressure stabilizing tank is provided at the user end, and the steam on the heating vehicle is transported to the pressure stabilizing tank at the user end through a pipeline.

[0019] A pressure stabilizing tank is set up at the user end to ensure that heat energy is smoothly delivered to the user.

[0020] Preferably, a pressure transmitter is installed in the pressure stabilizing tank, and a flow regulating valve is installed at the steam inlet of the pressure stabilizing tank.

[0021] The pressure transmitter and flow control valve cooperate with each other to achieve smooth flow delivery.

[0022] Preferably, an air supply connector is installed on the pipeline at the user end, and two air inlets are provided on the air supply connector; an air outlet pipe is provided on the heating vehicle, and a quick connector for connecting to the air inlet on the air supply connector is installed at the end of the air outlet pipe, an air outlet valve and a push rod corresponding to the air outlet valve are installed in the quick connector, and air inlet valves are installed at positions corresponding to the air inlets in the air supply connector, and touch rods are installed in the air supply connector and corresponding to the two air inlet valves respectively; before the steam in one heating vehicle is used up, the quick connector on the air outlet pipe of another heating vehicle is connected to the air inlet position of the air supply connector installed on the pipeline at the user end, and during the connection process, the push rod and the touch rod are both pushed to open the air outlet valve and the air inlet valve; then the quick connector on the air outlet pipe connected to the heating vehicle whose steam is about to run out is removed from the air supply connector, the air outlet valve in the removed quick connector is closed, and the air inlet valve at the air inlet position corresponding to the removed quick connector is closed.

[0023] Before the steam in one heating vehicle runs out, connect the quick-connect fitting on the outlet pipe of another heating vehicle to the air inlet of the gas supply connector installed on the user's pipe, ensuring uninterrupted heating at the user's end. When the quick-connect fitting is installed at the air inlet of the gas supply connector, the push rod and the feeler rod are pushed, opening the outlet and inlet valves. The heating vehicle, now filled with steam, supplies gas to the user. Then, remove the quick-connect fitting from the air inlet of the gas supply connector, closing the corresponding outlet and inlet valves.

[0024] Preferably, a positioning sleeve is provided in the air supply joint, a positioning spring is installed in the positioning sleeve, the ends of the two touch rods are movably inserted in the positioning sleeve, and the positioning spring abuts between the two touch rods; the air intake valve includes a valve seat and a valve disc, the valve seat is fixed on the inner wall of the air inlet, and the valve disc is fixed on the touch rod, and the clutch of the valve disc and the valve seat realizes the opening and closing of the air intake valve.

[0025] The end of the feeler rod is installed in the positioning sleeve to prevent deviation during the axial movement of the feeler rod. The movement of the feeler rod causes the valve disc and valve seat to engage and disengage to open and close the intake valve, which is convenient and reliable to operate.

[0026] Preferably, the air outlet valve includes a fixed seat and a movable seat. The fixed seat is fixed in the quick-release joint, and the movable seat can slide in the quick-release joint. The fixed seat is provided with a plurality of fixed holes, and the movable seat is provided with a plurality of movable holes. The fixed holes and the movable holes are staggered. The push rod is connected to the movable seat, and the movable seat and the quick-release joint are connected with an abutment spring. The fixed seat is provided with a push rod for pushing the touch rod, and the end of the push rod abuts against the end of the air inlet to push the movable seat to move; the clutch of the movable seat and the fixed seat realizes the opening and closing of the air outlet valve.

[0027] Before the quick-connect connector is installed on the air supply connector, the abutment spring forces the movable seat and fixed seat to fit tightly together, closing the outlet valve. When the quick-connect connector is connected to the air supply connector, the push rod abuts the contact rod, pushing the contact rod to move and open the air inlet valve. The push rod abuts the open end of the air inlet, pushing the movable seat to move and open the air outlet valve.

[0028] Compared with the existing technology, the beneficial effects of the present invention are: (1) the mobile heating method can realize the long-distance distribution of heat energy without pipeline network, saving the cost of laying pipeline network, shortening the construction period, and has great market potential in demand scenarios such as decentralized users and emergency heat sources; (2) the heating vehicle can provide uninterrupted heat to the user end, ensuring the stable and reliable use of heat at the user end. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the present invention;

[0030] Figure 2 is a cross-sectional view of the connection between the air supply connector and the quick-release connector according to embodiment 2 of the present invention;

[0031] In the figure: 1. Heat source steam pipeline, 2. Branch pipe, 3. Steam distribution pipe, 4. Gas pipe, 5. Main gas outlet valve, 6. Heating vehicle, 7. Gas valve, 8. Electric regulating valve, 9. Control cabinet, 10. Gas supply connector, 11. Air inlet, 12. Quick connector, 13. Push rod, 14. Touch rod, 15. Positioning sleeve, 16. Positioning spring, 17. Valve seat, 18. Valve disc, 19. Sealing surface, 20. Sealing ring, 21. Support frame, 22. Fixed seat, 23. Movable seat, 24. Fixed hole, 25. Movable hole, 26. Abutment spring, 27. Push rod, 28. Push block, 29. Locking pin, 30. Locking groove. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0033] Example 1: A mobile heating method (see attached Figure 1 ), including the following steps:

[0034] S1, lead out a branch pipe 2 from the heat source steam pipe 1 and connect it to a steam distribution pipe 3. Install several gas pipes 4 on the steam distribution pipe; install a main gas outlet valve 5 on the branch pipe; open the main gas outlet valve to transport steam through the heat source steam pipe to the steam distribution pipe;

[0035] S2, drive the heating vehicle 6 to the steam distribution pipe position, connect the heating vehicle to the gas pipe, and fill the heating vehicle with steam through the gas pipe;

[0036] S3, after the heating vehicle is filled with steam, it is driven to the user's end location, and the heating vehicle is connected to the pipeline at the user's end, so that the steam in the heating vehicle is transported to the pipeline at the user's end, realizing mobile heating.

[0037] A gas valve 7 and an electric regulating valve 8 are installed on the gas pipeline; during the process of S2 charging steam into the heating vehicle through the gas pipeline, the opening of the electric regulating valve is adjusted to adjust the flow rate. At least two heating vehicles are provided. Before the steam in one heating vehicle is used up, the other heating vehicle is connected to the pipeline at the user end for steam transportation, so that the heating vehicle can continuously transport steam to the user end pipeline. In this embodiment, three heating vehicles are provided, one for charging heat at the steam distribution pipe position, one for releasing heat at the user end, and the other for transportation on the road, ultimately achieving continuous and uninterrupted heating, replacing and realizing the function of pipeline connection heating. A control cabinet 9 is arranged corresponding to the steam distribution pipe, and the electric regulating valves are electrically connected to the control cabinet. A pressure-suppressing tank is provided at the user end, and the steam on the heating vehicle is transported to the pressure-suppressing tank at the user end through a pipeline. A pressure transmitter is installed in the pressure-suppressing tank, and a flow regulating valve is installed at the steam inlet of the pressure-suppressing tank.

[0038] For example, a waste incineration power plant is designed to process approximately 2,000 tons of waste daily, with four 650-ton circulating fluidized bed boilers and three 12-MW generator sets. Each boiler has a rated evaporation capacity of 55 tons / hour, a main steam line pressure of approximately 3.2 MPa, and a temperature of 300-425°C, meeting the plant's requirements for mobile heating and steam extraction. The design involves routing a DN100 heating pipe from the main steam line along the boiler room's existing support structure, then through the roof of the circulating pump room to a basketball court. This area serves as a mobile heating charging station, allowing for the installation of three steam charging ports on the steam distribution pipe. This "one-to-three" configuration allows for the steam supply to surrounding heat users.

[0039] Example 2: A mobile heating method (see attached Figure 2), the steps are similar to those of Example 1, the main difference being that in this embodiment, an air supply connector 10 is installed on the pipeline at the user end, and two air inlets 11 are provided on the air supply connector; an air outlet pipe is provided on the heating vehicle, and a quick connector 12 for connecting to the air inlet on the air supply connector is installed at the end of the air outlet pipe, an air outlet valve and a push rod 13 corresponding to the air outlet valve are installed in the quick connector, and air inlet valves are installed at positions corresponding to the air inlets in the air supply connector, and touch rods 14 are respectively installed in the air supply connector and corresponding to the two air inlet valves; before the steam in one heating vehicle is used up, the quick connector on the air outlet pipe of another heating vehicle is connected to the air inlet position of the air supply connector installed on the pipeline at the user end, and during the connection process, the push rod and the touch rod are both pushed to open the air outlet valve and the air inlet valve; then the quick connector on the air outlet pipe connected to the heating vehicle whose steam is about to be used up is removed from the air supply connector, the air outlet valve in the removed quick connector is closed, and the air inlet valve at the air inlet position corresponding to the removed quick connector is closed.

[0040] A positioning sleeve 15 is installed within the air supply connector, housing a positioning spring 16. The ends of two actuators are movably inserted into the sleeves, with the positioning spring abutting between the two actuators. The intake valve comprises a valve seat 17 and a valve disc 18. The valve seat is fixed to the inner wall of the air inlet, while the valve disc is fixed to the actuator. The engagement and disengagement of the valve disc and valve seat open and close the intake valve. Both the valve seat and valve disc have inclined sealing surfaces 19, and a sealing ring 20 is mounted on the outer wall of the valve disc, with the sealing surface being located on the outer wall of the sealing ring. A support frame 21 is provided within the air supply connector and corresponding to the actuator, and the actuator is mounted on the support frame for axial sliding.

[0041] The outlet valve includes a fixed seat 22 and a movable seat 23. The fixed seat is fixed within the quick-release connector, while the movable seat can slide within the quick-release connector. The fixed seat is provided with a plurality of fixed holes 24, and the movable seat is provided with a plurality of movable holes 25. The fixed and movable holes are staggered. A push rod is connected to the movable seat, and a spring 26 is connected between the movable seat and the quick-release connector. The fixed seat is provided with a push rod 27 for pushing the contact rod. The end of the push rod abuts the end of the air inlet, thereby pushing the movable seat to move. The engagement and disengagement of the movable seat and the fixed seat opens and closes the outlet valve. The push rod passes through the fixed hole, and a push block 28 is provided at the end of the push rod, which can abut against the end of the air inlet. The air supply connector is provided with at least two locking pins 29 on the outer wall at the air inlet. The quick-release connector has corresponding locking grooves 30 at the locking pins. The locking groove is L-shaped. After the locking pin is inserted into the locking groove on the quick-release connector and then rotated at a certain angle, the quick-release connector and the air supply connector are locked.

[0042] Before the steam in one heating vehicle runs out, connect the quick-release connector on the outlet pipe of another heating vehicle to the air inlet of the gas supply connector installed on the user's pipeline, ensuring uninterrupted heating at the user's end. Once the quick-release connector is installed at the air inlet of the gas supply connector, the push rod and the feeler rod are pushed, opening the outlet and inlet valves. The heating vehicle, now filled with steam, then supplies gas to the user. The quick-release connector on the other heating vehicle is then removed from the air inlet of the gas supply connector, and the corresponding outlet and inlet valves are closed. The remaining steps are the same as in Example 1.

[0043] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A mobile heating method, characterized in that: The following steps are involved: S1, lead out a branch pipe from the heat source steam pipeline and connect it to a steam distribution pipe, and install several gas pipes on the steam distribution pipe; S2, driving the heating vehicle to the steam distribution pipe, connecting the heating vehicle to the gas pipe, and charging steam into the heating vehicle through the gas pipe; S3, after the heating vehicle is filled with steam, it drives to the user's location, connects the heating vehicle to the user's pipeline, and transports the steam in the heating vehicle to the user's pipeline, thus realizing mobile heating; A gas supply connector is installed on the pipeline at the user end, and two air inlets are provided on the gas supply connector; an air outlet pipe is provided on the heating vehicle, and a quick connector for connecting to the air inlet on the gas supply connector is installed at the end of the air outlet pipe, and an air outlet valve and a push rod corresponding to the air outlet valve are installed in the quick connector. Air inlet valves are installed at positions corresponding to the air inlets in the gas supply connector, and touch rods are installed in the gas supply connector and corresponding to the two air inlet valves respectively; before the steam in one heating vehicle is used up, the quick connector on the air outlet pipe of another heating vehicle is connected to the air inlet position of the gas supply connector installed on the pipeline at the user end. During the connection process, the push rod and the touch rod are pushed to open the air outlet valve and the air inlet valve; then the quick connector on the air outlet pipe connected to the heating vehicle whose steam is about to be used up is removed from the gas supply connector, the air outlet valve in the removed quick connector is closed, and the air inlet valve at the air inlet position corresponding to the removed quick connector is closed.

2. A mobile heating method according to claim 1, characterized in that: At least two heating vehicles are set up. Before the steam in one heating vehicle is used up, the other heating vehicle is connected to the pipeline at the user end to transport steam, so that the heating vehicle can continuously transport steam to the pipeline at the user end.

3. A mobile heating method according to claim 1, characterized in that: A main air outlet valve is installed on the branch pipe; when the main air outlet valve is opened, steam is transported to the steam distribution pipe through the heat source steam pipeline.

4. A mobile heating method according to claim 1, characterized in that: A gas valve and an electric regulating valve are installed on the gas pipeline; when S2 fills the heating vehicle with steam through the gas pipeline, the opening of the electric regulating valve is adjusted to adjust the flow rate.

5. A mobile heating method according to claim 4, characterized in that: A control cabinet is arranged at the steam distribution pipe, and the electric regulating valves are electrically connected to the control cabinet.

6. The mobile heating method according to claim 1, characterized in that: A pressure stabilizing tank is set up at the user end, and the steam on the heating vehicle is transported to the pressure stabilizing tank at the user end through a pipeline.

7. A mobile heating method according to claim 6, characterized in that: A pressure transmitter is installed in the pressure stabilizing tank, and a flow regulating valve is installed at the steam inlet of the pressure stabilizing tank.

8. The mobile heating method according to claim 1, characterized in that: A positioning sleeve is provided in the air supply joint, a positioning spring is installed in the positioning sleeve, the ends of the two touch rods are movably inserted in the positioning sleeve, and the positioning spring abuts between the two touch rods; the air intake valve includes a valve seat and a valve disc, the valve seat is fixed on the inner wall of the air inlet, and the valve disc is fixed on the touch rod. The clutch of the valve disc and the valve seat realizes the opening and closing of the air intake valve.

9. The mobile heating method according to claim 7, wherein: The outlet valve includes a fixed seat and a movable seat. The fixed seat is fixed in the quick-release joint, and the movable seat can slide in the quick-release joint. The fixed seat is provided with a plurality of fixed holes, and the movable seat is provided with a plurality of movable holes. The fixed holes and the movable holes are staggered. The push rod is connected to the movable seat, and the movable seat and the quick-release joint are connected with abutment springs. The fixed seat is provided with a push rod for pushing the touch rod, and the end of the push rod abuts against the end of the air inlet to push the movable seat to move; the clutch of the movable seat and the fixed seat realizes the opening and closing of the outlet valve.

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