An assembled pressure-bearing heating system

Abstract

The application discloses an assembled pressure-bearing heating system and particularly relates to the technical field of heating, which comprises a container and a pressure-bearing water storage tank, the pressure-bearing water storage tank is installed in the container, a tank water outlet pipe is communicated with one side of the pressure-bearing water storage tank, a water inlet pipe is communicated with the other side of the pressure-bearing water storage tank, a connecting pipe is communicated with one end of the tank water outlet pipe, and a circulating pump for driving the circulation of hot water in the tank to a heating area is installed at the top of the connecting pipe. The water temperature is stably increased to above 100 DEG C, the heating heat output per unit area is greatly improved, the upper limit of the water temperature is broken through under high pressure, the heating area is significantly increased, the heating area of the traditional system with the same power is increased by more than one time, the core problem that the traditional system is difficult to meet the large-area heating demand is effectively solved, a three-stage pressure control mechanism ensures the stable operation of the high-pressure and high-temperature working condition, and the problems of the traditional system, such as the scattered arrangement of equipment, the independent installation of equipment, the large land occupation and the poor assembly adaptability, are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heating, more particularly, to an assembled pressure-bearing heating system. BACKGROUND

[0002] In the field of building heating, with the acceleration of urbanization and the continuous expansion of building scale, from residential communities, commercial complexes to industrial parks, higher requirements are put forward for the coverage, operation efficiency and spatial adaptability of the heating system. As the core infrastructure for ensuring indoor environmental comfort and industrial production process stability, the technical performance of the heating system directly determines the quality of heating service, energy consumption level and engineering feasibility.

[0003] At present, the equipment of the heating system is arranged in a scattered manner, and the boiler, water storage tank and circulating pump are installed independently, which occupies a large area and has poor assembly adaptability. Moreover, most of the heating systems operate under normal pressure, the upper limit of water temperature is 100 DEG C, water is easy to vaporize under normal pressure, and the maximum water temperature under normal pressure operation is only 100 DEG C, which has low thermal efficiency, limited heating area, and low heating output per unit area. Conventional water temperature below 100 DEG C, 1 ton of 2 tons of boiler heating area is only 800-1000 square meters, which cannot meet the demand of large-area heating. Some pressure-bearing heating equipment is not integrated in a container, and the pressure stability and temperature control precision are insufficient, so that the land occupation and heating efficiency cannot be considered. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the present application provides an assembled pressure-bearing heating system to solve the problems in the background art.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: an assembled pressure-bearing heating system, comprising a container and a pressure-bearing water storage tank, the pressure-bearing water storage tank is installed in the container, one side of the pressure-bearing water storage tank is communicated with a tank water outlet pipe, the other side of the pressure-bearing water storage tank is communicated with a water inlet pipe, one end of the tank water outlet pipe is communicated with a connecting pipe, the top of the connecting pipe is provided with a circulating pump for driving the hot water in the tank to be circulated and delivered to the heating area, one end of the connecting pipe is communicated with the water inlet end of the circulating pump, the water outlet end of the circulating pump is connected with a pipe network drain pipe for connecting the external heating pipe network, a composite heating mechanism is arranged outside the pressure-bearing water storage tank, and a multiple pressure control mechanism is arranged between the container and the pressure-bearing water storage tank.

[0006] The composite heating mechanism comprises an electric heating furnace, the electric heating furnace is installed on one side of the pressure-bearing water storage tank, one end of the electric heating furnace is connected with a spiral heating pipe, the spiral heating pipe extends in a spiral shape and extends into the inside of the pressure-bearing water storage tank, an electromagnetic heating coil is sleeved outside the pressure-bearing water storage tank, a vacuum heat insulation plate is fixedly connected to the inner wall of the container, and a nano reflective film is covered outside the container.

[0007] The multi-pressure control mechanism includes:

[0008] The primary control component includes a pressure sensor installed inside the pressurized water tank and an intelligent control unit installed on the top of the inner wall of the container. The pressure sensor is electrically connected to the intelligent control unit, which is also electrically connected to the electric heating furnace and the electromagnetic heating coil. The intelligent control unit is configured to control the electric heating furnace and the electromagnetic heating coil to reduce the heating power in response to the pressure data detected by the pressure sensor reaching a first preset pressure threshold.

[0009] The secondary protection component includes a first pressure relief pipe, which is fixedly connected to the top of the pressurized water storage tank. A one-way valve is fixedly installed on the top of the first pressure relief pipe. A fixed pipe is fixedly connected to the top of the one-way valve. One end of the fixed pipe is fixedly connected to a sealed tank. A high-temperature resistant airbag is installed inside the sealed tank. An inflation valve is fixedly connected to one side of the high-temperature resistant airbag.

[0010] The three-stage release assembly includes a second pressure relief pipe, which is fixedly connected to the top of the pressurized water tank. A pressure relief channel is fixedly connected to the top of the second pressure relief pipe, and a rupture disc is fixedly installed inside the pressure relief channel. The surface of the rupture disc is provided with a preset fracture line.

[0011] Preferably, the nano-reflective film is a double-layer aluminum foil-based nano-reflective film. Pressure relief ports are provided on the top surfaces of the container, the vacuum insulation panel, and the nano-reflective film. An exhaust pipe is fixedly connected to the top of the container, and multiple support columns are fixedly connected to the top of the exhaust pipe. Top covers are fixedly connected to the tops of the multiple support columns. The top of the pressure release channel corresponds to the pressure relief port on the top of the container and is used to export the high-pressure medium released after rupture to the outside of the container. The exhaust pipe is sealed to the pressure relief port and is used to export the high-pressure medium released by the rupture disc and reduce noise.

[0012] Preferably, the pressure water storage tank is integrally welded from duplex stainless steel. A support plate for supporting the pressure water storage tank is fixedly connected between the pressure water storage tank and the vacuum insulation panel. A fixing frame for fixing the electric heating furnace is fixedly connected between the electric heating furnace and the vacuum insulation panel. A drain pipe with a shut-off valve is fixedly installed at the lowest point of the bottom of the pressure water storage tank for periodically discharging impurities deposited in the tank.

[0013] Preferably, temperature sensors are fixedly installed at the top and bottom of the inner wall of the pressurized water tank, and both temperature sensors are electrically connected to the intelligent control unit. The intelligent control unit is configured to automatically adjust the local power of the electromagnetic heating coil or the operating frequency of the circulation pump in response to the temperature difference between the upper and lower parts of the water in the pressurized water tank exceeding ℃.

[0014] Preferably, multiple baffles are fixedly connected to the top and bottom of the inner wall of the pressure storage tank. The baffles are inclined and the direction of inclination is opposite to the direction of water flow driven by the circulation pump, so as to change the direction of water flow in the tank and prevent water flow short circuit.

[0015] Preferably, the one-way valve is directed from the pressurized water tank to the high-temperature resistant airbag, which is pre-filled with nitrogen.

[0016] Preferably, the heat energy of the electric heating furnace is conducted through a spiral heating tube extending into the pressurized water storage tank.

[0017] Preferably, the inner wall of the pressurized water storage tank is coated with an anti-scaling coating, which is made of polytetrafluoroethylene.

[0018] Preferably, the rupture disc is made of a corrosion-resistant alloy, and the burst pressure of the rupture disc is set to be higher than the opening pressure of the one-way valve.

[0019] Preferably, the high-temperature resistant airbag is made of fluororubber composite material, and ventilation openings are provided on one side of the container, vacuum insulation panel and nano-reflective film.

[0020] The technical effects and advantages of this invention are as follows:

[0021] 1. By focusing on high-pressure working conditions, the pressure-bearing water tank, made of duplex stainless steel integral welding, can withstand high pressure. Combined with the composite heating mechanism, the water temperature can be stably raised to over 100℃, significantly increasing the heat output per unit area. Ultimately, it achieves a breakthrough in water temperature under high pressure, significantly increasing the heating area. Compared with traditional systems of the same power, the heating area is more than doubled, effectively solving the core problem that traditional systems cannot meet the heating needs of large areas.

[0022] 2. To ensure safe operation when the water temperature exceeds the 100℃ upper limit, the system is equipped with a three-level pressure control mechanism. The first level monitors the pressure in real time through a pressure sensor in the pressurized water tank. When the pressure approaches excessively high, the intelligent control unit automatically reduces the power of the electric heating furnace and electromagnetic heating coil to suppress pressure rise at the source. The second level absorbs excess pressure by contracting a high-temperature resistant airbag pre-filled with nitrogen to avoid the impact of sudden pressure changes on the equipment. The third level releases pressure by breaking the rupture disc in extreme overpressure situations, completely eliminating safety risks. This triple protection forms a complete safety system of prediction, buffering, and emergency response, ensuring stable operation under high-pressure and high-temperature conditions. It provides core safety assurance for water temperature breakthroughs and increased heating area, and multiple pressure controls ensure high-pressure safety, providing reliable support for high-temperature heating.

[0023] 3. By adopting a combined electric and electromagnetic heating structure, the electric heating furnace extends into the pressurized water tank through a spiral heating tube, increasing the heat exchange area and improving heat transfer efficiency. The electromagnetic heating coil is sleeved outside the tank to form complementary heating, which can quickly raise the water temperature to over 100℃, rapidly breaking through the 100℃ temperature limit under normal pressure. At the same time, the inner wall of the container is lined with vacuum insulation panels and the outer wall is covered with a nano-reflective film, which significantly reduces the internal heat loss rate and reduces the waste of heat from the high-temperature water, ensuring that the heat efficiency under high pressure and high temperature is not lost. This further supports the heat demand for large-area heating and solves the problems of traditional system equipment being scattered, boilers, water tanks, circulating pumps, etc. being installed independently, occupying a large area, and having poor adaptability to prefabrication. By using the container as an integrated carrier, the pressurized water tank, composite heating mechanism, multiple pressure control mechanism and other core components are integrated into one, which greatly reduces the overall system footprint. At the same time, the modular characteristics of the container meet the requirements of prefabricated construction, which facilitates transportation, installation and later maintenance. While achieving large-area heating, it solves the pain point of traditional systems that are difficult to balance footprint and efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a bottom-view structural diagram of the present invention.

[0026] Figure 3 This is a partial structural diagram of the present invention.

[0027] Figure 4 This is a cross-sectional structural diagram of the pressure-bearing water storage tank of the present invention.

[0028] Figure 5 This is a schematic diagram of the connection between the first pressure relief pipe and the high-temperature resistant airbag of the present invention.

[0029] Figure 6 For the present invention Figure 1 Enlarged structural diagram at point A in the middle.

[0030] Figure 7 For the present invention Figure 3 Enlarged structural diagram at point B.

[0031] Figure 8 This is a partial cross-sectional view of the front of the present invention.

[0032] The attached diagram is labeled as follows: 1. Container; 2. Pressurized water tank; 3. Tank outlet pipe; 4. Connecting pipe; 5. Circulation pump; 6. Drain pipe; 7. Inlet pipe; 8. Electric heating furnace; 9. Spiral heating tube; 10. Electromagnetic heating coil; 11. Vacuum insulation panel; 12. Nano-reflective film; 13. Pressure sensor; 14. Intelligent control unit; 15. First pressure relief pipe; 16. One-way valve; 17. Fixing pipe; 18. Sealed tank; 19. High-temperature resistant airbag; 20. Inflation valve; 21. Second pressure relief pipe; 22. Pressure release channel; 23. Rupture disc; 24. Preset fracture line; 25. Pressure relief port; 26. Exhaust pipe; 27. Support column; 28. Top cover; 29. ​​Support plate; 30. Fixing frame; 31. Sewage pipe; 32. Temperature sensor; 33. Baffle plate; 34. Anti-scaling coating; 35. Ventilation opening. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] As attached Figures 1-8 The prefabricated pressurized heating system shown includes a container 1 and a pressurized water storage tank 2. The pressurized water storage tank 2 is installed inside the container 1. One side of the pressurized water storage tank 2 is connected to a tank outlet pipe 3, and the other side is connected to a water inlet pipe 7. One end of the tank outlet pipe 3 is connected to a connecting pipe 4. A circulation pump 5 for driving the hot water in the tank to circulate and transport to the heating area is installed at the top of the connecting pipe 4. One end of the connecting pipe 4 is connected to the water inlet of the circulation pump 5. The water outlet of the circulation pump 5 is connected to a drain pipe 6 for connecting to the external heating network. A composite heating mechanism is provided on the outside of the pressurized water storage tank 2. A multi-pressure control mechanism is provided between the container 1 and the pressurized water storage tank 2.

[0035] The composite heating mechanism includes an electric heating furnace 8, which is installed on one side of the pressurized water storage tank 2. One end of the electric heating furnace 8 is connected to a spiral heating tube 9, which extends spirally and into the interior of the pressurized water storage tank 2. An electromagnetic heating coil 10 is sleeved on the outside of the pressurized water storage tank 2. A vacuum insulation board 11 is fixedly connected to the inner wall of the container 1, and a nano reflective film 12 covers the outside of the container 1.

[0036] The electric heating furnace 8 is equipped with a spiral heating tube 9. The spiral structure increases the heat exchange area and improves the heat transfer efficiency. It is also suitable for high-pressure conditions and solves the problem of insufficient heat exchange in traditional heating methods. The electromagnetic heating coil 10 and the electric heating furnace 8 form a composite heating system, which can quickly increase the water temperature and significantly improve the thermal efficiency. The vacuum insulation board 11 on the inner wall of the container 1 and the nano-reflective film 12 on the outer wall work together to greatly reduce the internal heat loss rate, reduce heat waste, and further ensure the continuous stability of high-temperature heating.

[0037] Multiple pressure control mechanisms, including:

[0038] The primary control component includes a pressure sensor 13 installed in the pressurized water tank 2 and an intelligent control unit 14 installed on the top of the inner wall of the container 1. The pressure sensor 13 is electrically connected to the intelligent control unit 14, and the intelligent control unit 14 is also electrically connected to the electric heating furnace 8 and the electromagnetic heating coil 10. The intelligent control unit 14 is configured to control the electric heating furnace 8 and the electromagnetic heating coil 10 to reduce the heating power in response to the pressure data detected by the pressure sensor 13 reaching a first preset pressure threshold.

[0039] Pressure sensor 13 monitors the pressure inside pressurized water tank 2 in real time, enabling accurate acquisition of pressure data and providing a reliable basis for pressure control. Intelligent control unit 14 actively adjusts the power of electric heating furnace 8 and electromagnetic heating coil 10 based on the pressure data, forming a predictive first-level pressure control. This can promptly suppress pressure rise when the pressure is close to being too high, avoiding the risk of pressure exceeding the standard, improving the automation and safety of system operation, and completing pressure regulation without manual intervention, reducing labor costs, and avoiding safety hazards caused by delays in manual operation.

[0040] The secondary protection component includes a first pressure relief pipe 15, which is fixedly connected to the top of the pressurized water storage tank 2. A one-way valve 16 is fixedly installed on the top of the first pressure relief pipe 15. A fixed pipe 17 is fixedly connected to the top of the one-way valve 16. One end of the fixed pipe 17 is fixedly connected to a sealed tank 18. A high-temperature resistant airbag 19 is installed inside the sealed tank 18. An inflation valve 20 is fixedly connected to one side of the high-temperature resistant airbag 19.

[0041] The first pressure relief pipe 15 works in conjunction with the one-way valve 16 to ensure that the high-pressure medium in the pressurized water storage tank 2 can only flow in one direction to the high-temperature resistant airbag 19, avoiding the secondary pressure increase caused by medium backflow. The high-temperature resistant airbag 19, pre-filled with nitrogen, can absorb excess pressure by contraction and then elastically reset after the pressure drops, thus achieving pressure buffering and regulation instead of direct pressure relief. This extends the service life of the equipment, reduces the impact of sudden pressure changes on the tank, and the inflation valve 20 facilitates the periodic replenishment of nitrogen in the high-temperature resistant airbag 19, ensuring the long-term effectiveness of its pressure buffering function and reducing the difficulty of component maintenance.

[0042] The three-stage release assembly includes a second pressure relief pipe 21, which is fixedly connected to the top of the pressurized water storage tank 2. A pressure relief channel 22 is fixedly connected to the top of the second pressure relief pipe 21. A rupture disc 23 is fixedly installed inside the pressure relief channel 22. A preset fracture line 24 is provided on the surface of the rupture disc 23.

[0043] The second pressure relief pipe 21 and the pressure relief channel 22 constitute an emergency release channel for high-pressure media, serving as the ultimate safety guarantee after the failure of the first two levels of protection, completely eliminating safety accidents caused by overpressure. The preset fracture line 24 on the surface of the rupture disc 23 ensures that it can break along a fixed path when the pressure exceeds the limit, avoiding secondary damage caused by flying fragments and improving the safety of the pressure relief process. The passive triggering design of the rupture disc 23 requires no additional power, responds quickly, and can complete the pressure release in a very short time, ensuring the safety of the system under extreme conditions.

[0044] As attached Figure 1 , 2 As shown in Figure 5, the nano-reflective film 12 is a double-layer aluminum foil-based nano-reflective film. Pressure relief ports 25 are provided on the top surfaces of the container 1, the vacuum insulation panel 11, and the nano-reflective film 12. An exhaust pipe 26 is fixedly connected to the top of the container 1. Multiple support columns 27 are fixedly connected to the top of the exhaust pipe 26. A top cover 28 is fixedly connected to the top of the multiple support columns 27. The top of the pressure relief channel 22 corresponds to the pressure relief port 25 on the top of the container 1. It is used to export the high-pressure medium released after rupture to the outside of the container 1. The exhaust pipe 26 is sealed to the pressure relief port 25. It is used to export the high-pressure medium released by the rupture disc 23 and reduce noise.

[0045] Compared to ordinary reflective films, the double-layer aluminum foil-based nano-reflective film 12 further enhances the heat reflection effect, improves the heat preservation performance, and reduces heat loss. The pressure relief port 25, in conjunction with the exhaust pipe 26, can safely discharge the high-pressure medium released by the rupture disc 23 to the outside of the container 1, avoiding pressure accumulation inside the container. At the same time, the exhaust pipe 26 can effectively reduce pressure relief noise and reduce noise interference to the surrounding environment. The top cover 28 supported by the support column 27 can provide rain and dust protection for the drainage pipe 6 and the external pipe network connection end, preventing impurities from entering the pipe network and affecting the heating water quality and circulation efficiency, and extending the service life of the pipe network.

[0046] As attached Figure 1 , 2 As shown in Figures 3, 4, 7, and 8, the pressurized water storage tank 2 is made of duplex stainless steel and welded as a whole. A support plate 29 for supporting the pressurized water storage tank 2 is fixedly connected between the pressurized water storage tank 2 and the vacuum insulation plate 11. A fixing frame 30 for fixing the electric heating furnace 8 is fixedly connected between the electric heating furnace 8 and the vacuum insulation plate 11. A drain pipe 31 with a shut-off valve is fixedly installed at the lowest point of the bottom of the pressurized water storage tank 2 for periodically discharging the impurities deposited in the tank.

[0047] The duplex stainless steel integrally welded pressure storage tank 2 has high strength and corrosion resistance, and can withstand high pressure, solving the problem of insufficient pressure bearing capacity of traditional tanks and extending the service life of the tank. The support plate 29 and the fixing frame 30 provide stable support and fixation for the pressure storage tank 2 and the electric heating furnace 8, respectively, to prevent the equipment from shifting due to vibration during operation and to ensure the stability of the system structure. The drain pipe 31 at the lowest point of the bottom can regularly discharge the impurities deposited in the tank to prevent impurities from clogging the heating pipe or affecting the water quality, and to ensure heating efficiency and clean heating water quality.

[0048] As attached Figure 2 , 4 As shown in Figure 8, temperature sensors 32 are fixedly installed on the top and bottom of the inner wall of the pressurized water tank 2. Both temperature sensors 32 are electrically connected to the intelligent control unit 14. The intelligent control unit 14 is configured to automatically adjust the local power of the electromagnetic heating coil 10 or the operating frequency of the circulation pump 5 in response to the temperature difference between the upper and lower parts of the water in the pressurized water tank 2 exceeding 5°C.

[0049] The temperature sensors 32 at the top and bottom can simultaneously monitor the water temperature in the upper and lower parts of the tank, accurately capturing the water temperature difference and avoiding fluctuations in heating effect caused by uneven local water temperature. The intelligent control unit 14 adjusts the local power of the electromagnetic heating coil 10 or the frequency of the circulation pump 5 according to the water temperature difference, which can quickly balance the water temperature in the tank, ensure water temperature uniformity, improve the temperature stability of the heating area, achieve water temperature balance without manual adjustment, improve the system's intelligence level, and avoid heat energy waste caused by uneven water temperature, further improving thermal efficiency.

[0050] As attached Figure 4 , 8 As shown, multiple baffles 33 are fixedly connected to the top and bottom of the inner wall of the pressure storage tank 2. The baffles 33 are inclined and the direction of inclination is opposite to the direction of water flow driven by the circulating pump 5, which is used to change the direction of water flow in the tank and prevent water flow short circuit.

[0051] The baffle plate 33, which is tilted in the opposite direction to the water flow, can forcibly change the water flow path inside the tank, avoiding the short circuit phenomenon where the water flows directly from the inlet pipe 7 to the outlet pipe 3 of the tank. This ensures that the water flow is in full contact with the heating components. The extended water flow path can increase the heat exchange time between the water and the spiral heating tube 9 and the electromagnetic heating coil 10, further improving the heating efficiency. The baffle plate 33 can also disturb the water flow, promote the mixing of the water inside the tank, help balance the water temperature, and reduce the temperature difference between the upper and lower parts of the water.

[0052] As attached Figure 1 , 2 As shown in Figures 3 and 5, the one-way valve 16 is directed from the pressurized water tank 2 to the high-temperature resistant airbag 19, which is pre-filled with nitrogen.

[0053] The one-way valve 16 restricts the flow of the medium from the pressurized water tank 2 to the high-temperature resistant airbag 19, which can prevent the medium after absorbing pressure in the high-temperature resistant airbag 19 from flowing back into the tank, avoid the secondary pressure increase in the tank, and ensure the effectiveness of pressure control. Nitrogen has stable chemical properties and does not easily react with other substances. The high-temperature resistant airbag 19 is pre-filled with nitrogen to ensure that it can still perform its pressure buffering function normally in high-temperature environments, avoid gas deterioration affecting the buffering effect, and at the same time, the elastic properties of nitrogen are suitable for pressure absorption and reset.

[0054] As attached Figure 8 As shown, the heat energy of the electric heating furnace 8 is conducted through the spiral heating pipe 9 that extends into the pressurized water storage tank 2.

[0055] The spiral heating tube 9 extends into the tank and directly contacts the water, resulting in a short heat conduction path, reducing heat loss during transfer and improving heat utilization. The spiral structure significantly increases the contact area between the heating tube and the water, leading to higher heat exchange efficiency compared to straight heating tubes. This allows for rapid increase in tank water temperature, shortening heating preparation time. The heating tube acts directly on the water, avoiding localized overheating or uneven heating caused by indirect heating, ensuring overall stable tank water temperature.

[0056] As attached Figure 4 As shown, the inner wall of the pressurized water storage tank 2 is coated with an anti-scaling coating 34, which is made of polytetrafluoroethylene.

[0057] The PTFE anti-scaling coating 34 has a smooth surface, making it difficult for it to combine with calcium and magnesium ions in the water to form scale. This prevents scale from adhering to the tank wall and heating tube surface, thus preventing scale from affecting the heat transfer efficiency of the heating tube and ensuring that the heating components maintain high efficiency for a long time. It also avoids the decrease in thermal efficiency caused by scale, reduces the number of times scale cleaning is needed, and lowers the equipment maintenance cost and difficulty. At the same time, it prevents scale from falling off and clogging the pipes, ensuring the smooth flow of the water circulation system.

[0058] As attached Figure 3 , 7 As shown, the rupture disc 23 is made of a corrosion-resistant alloy, and the burst pressure of the rupture disc 23 is set to be higher than the opening pressure of the one-way valve 16.

[0059] As attached Figure 1 , 2 As shown in Figures 5 and 6, the high-temperature resistant airbag 19 is made of fluororubber composite material, and ventilation openings 35 are provided on one side of the container 1, the vacuum insulation panel 11, and the nano-reflective film 12.

[0060] Fluororubber composite materials have excellent high-temperature resistance, which can meet the pressure buffering requirements of high-temperature environments inside the tank, prevent the airbag from aging or being damaged due to high temperature, and extend its service life. Ventilation vent 35 can realize the air circulation between the inside of container 1 and the outside, and timely discharge the heat generated during equipment operation, so as to prevent the temperature inside the container from being too high and affecting the normal operation of electronic components such as intelligent control unit 14 and sensors. Air circulation can balance the humidity inside and outside the container, prevent the equipment from being corroded by the humid environment inside the container, and ensure the long-term stable operation of all components of the system.

[0061] Working principle of the invention: The prefabricated pressurized heating system provided by the invention uses a container 1 as an integrated carrier. The pressurized water storage tank 2 is fixedly installed inside the container 1 and is stably supported by a support plate 29. Cold water first enters the pressurized water storage tank 2 through the inlet pipe 7 and is stored there. After the water temperature meets the heating requirements, the circulation pump 5 installed at the top of the connecting pipe 4 is started. Its inlet end is connected to the connecting pipe 4 and its outlet end is connected to the drain pipe 6. It can drive the hot water in the pressurized water storage tank 2 to flow into the connecting pipe 4 through the tank outlet pipe 3. After being pressurized by the circulation pump 5, it is connected to the external heating network through the drain pipe 6 to complete the circulation and transportation of heating water.

[0062] To achieve efficient heating and adapt to high-pressure conditions, the system heats the water in the pressurized water tank 2 through a composite heating mechanism. The electric heating furnace 8 is installed on one side of the pressurized water tank 2, and a spiral heating pipe 9 connected to one end extends into the interior of the pressurized water tank 2 in a spiral shape. By increasing the heat exchange area, heat energy is transferred to the water. At the same time, the electromagnetic heating coil 10 sleeved on the outside of the pressurized water tank 2 causes the tank wall to heat up through electromagnetic induction, forming a synergistic heating with the electric heating. The vacuum insulation board 11 fixedly connected to the inner wall of the container 1 and the nano-reflective film 12 covering the outer wall can significantly reduce internal heat loss. The pressurized water tank 2, which is integrally welded from duplex stainless steel, can withstand high pressure. With the composite heating mechanism, the water temperature can be stably raised to above 100°C. Breaking through 100°C, the heating heat output per unit area is greatly increased, and the heating area is greatly increased.

[0063] To address safety risks under high-pressure conditions, the system is equipped with multiple pressure control mechanisms. In the primary control component, the pressure sensor 13 inside the pressurized water tank 2 monitors the pressure in real time and transmits the data to the intelligent control unit 14 on the top of the inner wall of the container 1. When the pressure reaches the first preset pressure threshold, the intelligent control unit 14 automatically reduces the heating power of the electric heater 8 and the electromagnetic heating coil 10 to suppress the pressure rise. If the pressure continues to rise, the secondary protection component is activated. The first pressure relief pipe 15 on the top of the pressurized water tank 2 is connected to the sealed tank 18 through the one-way valve 16 and the fixed pipe 17. The one-way valve 16 is open from the... From the pressurized water tank 2 to the high-temperature resistant airbag 19, the high-temperature resistant airbag 19, pre-filled with nitrogen, absorbs excess pressure by contraction and then elastically resets after the pressure drops. If the first two levels of protection fail, the third-level release component will take effect. In the pressure release channel 22 connected to the second pressure relief pipe 21 at the top of the pressurized water tank 2, the rupture disc 23, made of corrosion-resistant alloy and with a burst pressure higher than the opening pressure of the one-way valve 16, will break along the preset fracture line 24. The high-pressure medium enters the exhaust pipe 26 and exits the tank through the pressure relief port 25 at the top of the container 1, the vacuum insulation panel 11, and the nano-reflective film 12. The exhaust pipe 26 can also reduce the pressure relief noise.

[0064] Temperature sensors 32 at the top and bottom of the inner wall of the pressurized water tank 2 transmit water temperature data to the intelligent control unit 14. When the temperature difference between the upper and lower parts of the water exceeds 5°C, the intelligent control unit 14 adjusts the local power of the electromagnetic heating coil 10 or the operating frequency of the circulation pump 5 to ensure uniform water temperature. The polytetrafluoroethylene anti-scaling coating 34 on the inner wall of the pressurized water tank 2 can reduce scale deposition. The drain pipe 31 with a shut-off valve at the lowest point of the bottom facilitates the periodic discharge of impurities. The ventilation openings 35 on one side of the container 1, vacuum insulation panel 11, and nano-reflective film 12 enable air circulation. The top cover 28 connected to the exhaust pipe 26 by the support column 27 can block rainwater and dust. Finally, the system works in concert through the above structures to achieve integrated layout, efficient heating, and safe operation. The heating area can be greatly increased, which is significantly improved compared to traditional systems of the same power.

[0065] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0066] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0067] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated pressurized heating system, comprising a container (1) and a pressurized water storage tank (2), characterized in that: The pressurized water storage tank (2) is installed inside the container (1). One side of the pressurized water storage tank (2) is connected to the tank outlet pipe (3), and the other side of the pressurized water storage tank (2) is connected to the inlet pipe (7). One end of the tank outlet pipe (3) is connected to the connecting pipe (4). The top of the connecting pipe (4) is equipped with a circulation pump (5) for driving the hot water in the tank to circulate and transport to the heating area. One end of the connecting pipe (4) is connected to the inlet end of the circulation pump (5). The outlet end of the circulation pump (5) is connected to a drain pipe (6) for connecting to the external heating network. A composite heating mechanism is provided on the outside of the pressurized water storage tank (2). A multi-pressure control mechanism is provided between the container (1) and the pressurized water storage tank (2). The composite heating mechanism includes an electric heating furnace (8), which is installed on one side of the pressurized water storage tank (2). One end of the electric heating furnace (8) is connected to a spiral heating tube (9), which extends spirally and into the interior of the pressurized water storage tank (2). An electromagnetic heating coil (10) is sleeved on the outside of the pressurized water storage tank (2). A vacuum insulation board (11) is fixedly connected to the inner wall of the container (1), and a nano-reflective film (12) covers the outside of the container (1). The multi-pressure control mechanism includes: The primary control component includes a pressure sensor (13) disposed in the pressurized water tank (2) and an intelligent control unit (14) disposed on the top of the inner wall of the container (1). The pressure sensor (13) is electrically connected to the intelligent control unit (14), and the intelligent control unit (14) is also electrically connected to the electric heating furnace (8) and the electromagnetic heating coil (10). The intelligent control unit (14) is configured to control the electric heating furnace (8) and the electromagnetic heating coil (10) to reduce the heating power in response to the pressure data detected by the pressure sensor (13) reaching a first preset pressure threshold. The secondary protection component includes a first pressure relief pipe (15), which is fixedly connected to the top of the pressurized water storage tank (2). A one-way valve (16) is fixedly installed on the top of the first pressure relief pipe (15). A fixed pipe (17) is fixedly connected to the top of the one-way valve (16). A sealed tank (18) is fixedly connected to one end of the fixed pipe (17). A high-temperature resistant airbag (19) is installed inside the sealed tank (18). An inflation valve (20) is fixedly connected to one side of the high-temperature resistant airbag (19). The three-stage release assembly includes a second pressure relief pipe (21), which is fixedly connected to the top of the pressurized water tank (2). The top of the second pressure relief pipe (21) is fixedly connected to a pressure release channel (22), and a rupture disc (23) is fixedly installed inside the pressure release channel (22). The surface of the rupture disc (23) is provided with a preset fracture line (24).

2. The prefabricated pressurized heating system according to claim 1, characterized in that: The nano-reflective film (12) is a double-layer aluminum foil-based nano-reflective film. The top surfaces of the container (1), the vacuum insulation panel (11) and the nano-reflective film (12) are all provided with pressure relief ports (25). The top of the container (1) is fixedly connected to an exhaust pipe (26). The top of the exhaust pipe (26) is fixedly connected to multiple support columns (27). The top of the multiple support columns (27) is fixedly connected to a top cover (28). The top of the pressure release channel (22) corresponds to the pressure relief port (25) on the top of the container (1) and is used to export the high-pressure medium released after rupture to the outside of the container (1). The exhaust pipe (26) is sealed to the pressure relief port (25) and is used to export the high-pressure medium released by the rupture disc (23) and reduce noise.

3. The prefabricated pressurized heating system according to claim 1, characterized in that: The pressurized water storage tank (2) is made of duplex stainless steel by integral welding. A support plate (29) for supporting the pressurized water storage tank (2) is fixedly connected between the pressurized water storage tank (2) and the vacuum insulation plate (11). A fixing frame (30) for fixing the electric heating furnace (8) is fixedly connected between the electric heating furnace (8) and the vacuum insulation plate (11). A drain pipe (31) with a shut-off valve is fixedly installed at the lowest point of the bottom of the pressurized water storage tank (2) for periodically discharging the impurities deposited in the tank.

4. The prefabricated pressurized heating system according to claim 1, characterized in that: Temperature sensors (32) are fixedly installed on the top and bottom of the inner wall of the pressurized water tank (2). Both temperature sensors (32) are electrically connected to the intelligent control unit (14). The intelligent control unit (14) is configured to automatically adjust the local power of the electromagnetic heating coil (10) or the operating frequency of the circulating pump (5) in response to the temperature difference between the upper and lower parts of the water in the pressurized water tank (2) exceeding 5°C.

5. The prefabricated pressurized heating system according to claim 1, characterized in that: Multiple baffles (33) are fixedly connected to the top and bottom of the inner wall of the pressure storage tank (2). The baffles (33) are inclined and the direction of inclination is opposite to the direction of water flow driven by the circulating pump (5). They are used to change the direction of water flow in the tank and prevent water flow short circuit.

6. The prefabricated pressurized heating system according to claim 1, characterized in that: The one-way valve (16) is directed from the pressurized water tank (2) to the high-temperature resistant airbag (19), which is pre-filled with nitrogen.

7. The prefabricated pressurized heating system according to claim 1, characterized in that: The heat energy of the electric heating furnace (8) is conducted through the spiral heating pipe (9) that extends into the pressure water tank (2).

8. The prefabricated pressurized heating system according to claim 1, characterized in that: The inner wall of the pressure water storage tank (2) is coated with an anti-scaling coating (34), which is made of polytetrafluoroethylene.

9. The prefabricated pressurized heating system according to claim 1, characterized in that: The rupture disc (23) is made of a corrosion-resistant alloy, and the burst pressure of the rupture disc (23) is set to be higher than the opening pressure of the one-way valve (16).

10. The prefabricated pressurized heating system according to claim 1, characterized in that: The high-temperature resistant airbag (19) is made of fluororubber composite material, and ventilation openings (35) are provided on one side of the container (1), vacuum insulation panel (11) and nano reflective film (12).

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