Zero-carbon park circulating heat supply system
The zero-carbon park circulating heating system uses a manifold network and a high-temperature buffer water tank to receive high-temperature cooling water and a steam pipe to receive high-temperature steam. The heat exchanger then supplies heating to the office building, solving the problems of energy waste and carbon emissions associated with water-based underfloor heating systems and achieving efficient energy utilization and emission reduction.
Patent Information
- Application Number
- CN202521306887.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-19
- Estimated Expiration
- 2035-06-25
AI Technical Summary
The water-based underfloor heating system in the park's office buildings uses gas/coal-fired boilers for heating, failing to effectively utilize the high-temperature cooling water and steam generated by the equipment within the park, resulting in energy waste and increased carbon emissions.
The zero-carbon park circulating heating system is adopted, which receives high-temperature cooling water through the manifold network and high-temperature buffer water tank, receives high-temperature steam through steam pipes, and transfers the heat energy to the heating side through heat exchangers to provide heat energy for office building heating.
By effectively utilizing the high-temperature cooling water and steam generated by the equipment within the park, the reliance on gas/coal boilers is reduced, saving energy and lowering carbon emissions.
Smart Images
Figure CN224261794U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of park heating technology, and in particular to a zero-carbon park circulating heating system. Background Technology
[0002] With the deepening implementation of the "dual carbon" goals, "zero carbon" industrial parks have become an important direction for the green transformation of the industrial sector. The core of zero carbon industrial parks lies in significantly reducing or completely offsetting the direct and indirect carbon emissions during their operation, thereby achieving cleaner and more efficient energy consumption.
[0003] In steel metallurgical industrial parks, equipment such as rolling mills, heating furnaces, and continuous casting crystallizers typically generate large amounts of high-temperature cooling water (usually between 50°C and 80°C) and high-temperature steam (usually exceeding 100°C). Currently, the high-temperature cooling water and high-temperature steam need to be cooled by cooling towers before they can be recycled or discharged, resulting in a significant waste of thermal energy.
[0004] The office buildings in the park rely on water-based underfloor heating systems to maintain room temperature in winter. The current water-based underfloor heating systems mostly use gas / coal-fired boilers to heat the underfloor heating water, which fails to effectively utilize the high-temperature cooling water and high-temperature steam generated by the equipment in the park, resulting in energy waste and increased carbon emissions. Utility Model Content
[0005] The purpose of this application is to provide a zero-carbon park circulating heating system to solve the technical problem that the existing water-based underfloor heating systems in park office buildings use gas / coal boilers for heating, which fails to effectively utilize the high-temperature cooling water and high-temperature steam generated by the equipment in the park, resulting in energy waste and increased carbon emissions.
[0006] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:
[0007] A zero-carbon park circulating heating system includes a high-temperature water supply side, a high-temperature steam supply side, a first heat exchanger, a second heat exchanger, heat exchange tubes, and a heating side.
[0008] The high-temperature water supply side includes a manifold network, a high-temperature buffer tank, a first circulation pump, a cooling water tank, a water supply pump, and a distributed network;
[0009] One end of the manifold is connected to the high-temperature cooling water discharged from the equipment in the park, and the other end is connected to the inlet side of the high-temperature buffer water tank. The outlet side of the high-temperature buffer water tank is connected to the first circulating pump through the outlet pipe. A first valve is installed on the outlet pipe. The other end of the first circulating pump is connected to the hot end inlet of the first heat exchanger. The hot end outlet of the first heat exchanger is connected to the inlet side of the cooling water tank. The outlet side of the cooling water tank is connected to the water supply pump. The other end of the water supply pump is connected to the decentralized pipe network. The decentralized pipe network is connected to the equipment in the park to provide low-temperature cooling water to the equipment.
[0010] The high-temperature steam supply side includes a steam pipe, a pressure reducing valve, and a gas-water separator. The middle part of the steam pipe is connected to the hot end of the second heat exchanger. One end of the steam pipe is connected to the equipment in the park to receive high-temperature steam, and the other end is connected to the cooling tower in the park. The pressure reducing valve and the gas-water separator are both located at the end of the steam pipe near the equipment, and the gas-water separator is located downstream of the pressure reducing valve. The heat exchange tube is connected to the cold end of the second heat exchanger, and both ends of the heat exchange tube are connected to the outlet pipe and located at both ends of the first valve. A second valve is provided at the end of the heat exchange tube near the high-temperature buffer water tank.
[0011] The heating side is connected to the cold end of the first heat exchanger to provide heating for the office buildings in the park.
[0012] In a zero-carbon park circulating heating system described in this application embodiment, the heating side includes a water supply pipe, a water distributor, several water supply branch pipes, several floor heating coils, several return water branch pipes, a water collector, and a return water pipe.
[0013] One end of the water supply pipe is connected to the cold end outlet of the first heat exchanger, and the other end is connected to the water distributor. The other end of the water distributor is connected to several water supply branch pipes. Several floor heating coils are respectively installed on different floors of the office building in the park. One end of each floor heating coil is connected to a water supply branch pipe, and the other end is connected to a return water branch pipe. The other end of several return water branch pipes is connected to the water collector. The other end of the water collector is connected to the return water pipe. The other end of the return water pipe is connected to the cold end inlet of the first heat exchanger, and a second circulation pump is installed on it.
[0014] In a zero-carbon park circulating heating system described in this application embodiment, a temperature control unit is provided on the heating side. The temperature control unit includes a first tee fitting, a second tee fitting, a temperature control connecting pipe, a first temperature sensor, a second temperature sensor, a first heating flow valve, and a second heating flow valve.
[0015] The first tee fitting has two ends connected to the water supply pipe, and the second tee fitting has two ends connected to the return water pipe. The third ends of the first tee fitting and the second tee fitting are connected through the temperature control connecting pipe. The first temperature sensor is installed on the water supply pipe and is located at the end of the first tee fitting near the water distributor. The second temperature sensor is installed on the return water pipe and is located at the end of the second tee fitting near the water collector. The first heating flow valve is installed on the return water pipe and is located at the end of the second tee fitting near the first heat exchanger. The second heating flow valve is installed on the temperature control connecting pipe.
[0016] In a zero-carbon park circulating heating system described in this application embodiment, a replenishment pipe is connected to the water supply pipe, and a switch valve is installed on the replenishment pipe.
[0017] In a zero-carbon park circulating heating system described in this application embodiment, a dynamic balancing valve is installed on the water supply branch pipe.
[0018] In a zero-carbon park circulating heating system described in this application embodiment, a level gauge and a third temperature sensor are installed in the high-temperature buffer water tank.
[0019] In a zero-carbon park circulating heating system described in this application embodiment, the manifold network includes a main manifold and several branch manifolds;
[0020] Each of the manifold branch pipes is connected to a device at one end and to the main manifold at the other end. A manifold flow valve is installed on the manifold branch pipe. The other end of the main manifold is connected to the high-temperature buffer water tank. A Y-type filter is installed on the main manifold.
[0021] In a zero-carbon park circulating heating system described in this application embodiment, the decentralized pipeline network includes a decentralized main pipe and several decentralized branch pipes;
[0022] Each of the distributed branch pipes has one end connected to a device and the other end connected to the distributed main pipe. A distributed flow valve is installed on the distributed branch pipe. The other end of the distributed main pipe is connected to the cooling water tank. A fourth temperature sensor is installed inside the cooling water tank.
[0023] In a zero-carbon park circulating heating system described in this application embodiment, a drain valve is provided at the hot end outlet of the second heat exchanger, and the other end of the drain valve is connected to the cooling water tank.
[0024] The zero-carbon park circulating heating system described in this application embodiment also includes a photovoltaic power generation unit, which includes several photovoltaic panels, a combiner box, a photovoltaic controller, and an energy storage battery;
[0025] Several photovoltaic panels are mounted on the roof of the office building via brackets and are electrically connected to the combiner box. The combiner box is connected to the photovoltaic controller, and the photovoltaic controller is electrically connected to the energy storage battery to charge the energy storage battery.
[0026] Compared with the prior art, the embodiments of this application have the following beneficial effects:
[0027] As can be seen from the above technical solution, the embodiments of this application provide a zero-carbon park circulating heating system. By utilizing a manifold network and a high-temperature buffer water tank to receive high-temperature cooling water generated by equipment within the park, and by receiving high-temperature steam generated by equipment within the park through steam pipes, the high-temperature cooling water discharged from the high-temperature buffer water tank is further heated through a second heat exchanger, and heat energy is provided to the heating side through a first heat exchanger. This effectively utilizes the high-temperature cooling water and high-temperature steam generated by equipment within the park to heat office buildings within the park, solving the technical problem that in the prior art, water-based underfloor heating systems in park office buildings use gas / coal-fired boilers for heating, failing to effectively utilize the high-temperature cooling water and high-temperature steam generated by equipment within the park, resulting in energy waste and increased carbon emissions. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The drawings are not intended to be drawn to scale, and for clarity, not every component will be labeled in each drawing. The drawings described below are merely some embodiments of this application. Those skilled in the art can obtain other drawings based on these drawings without creative effort. Wherein:
[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of this application.
[0030] Figure 2 This is a schematic diagram of the photovoltaic power generation unit in an embodiment of this application.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1-First heat exchanger, 2-Second heat exchanger, 3-Heat exchange tube, 4-High temperature buffer water tank, 5-First circulating pump, 6-Cooling water tank, 7-Water supply pump, 8-Outlet pipe, 9-First valve, 10-Steam pipe, 11-Pressure reducing valve, 12-Gas-water separator, 13-Second valve, 14-Office building, 15-Water supply pipe, 16-Water distributor, 17-Water supply branch pipe, 18-Return water branch pipe, 19-Water collector, 20-Return water pipe, 21-Second circulating pump, 22-First tee fitting, 23-Second tee fitting Components: 24-Temperature control connecting pipe, 25-First temperature sensor, 26-Second temperature sensor, 27-First heating flow valve, 28-Second heating flow valve, 29-Replenishment pipe, 30-Switch valve, 31-Dynamic balancing valve, 32-Main manifold, 33-Branch manifold, 34-Main flow valve, 35-Y-type filter, 36-Distribution main pipe, 37-Distribution branch pipe, 38-Distribution flow valve, 39-Drain valve, 40-Photovoltaic panel, 41-Combiner box, 42-Photovoltaic controller, 43-Energy storage battery. Detailed Implementation
[0033] Currently, the underfloor heating system in the park's office buildings is heated by gas / coal boilers, failing to effectively utilize the high-temperature cooling water and steam generated by the equipment within the park, resulting in energy waste and increasing carbon emissions.
[0034] In view of this, this application provides a zero-carbon park circulating heating system. The concept is to receive high-temperature cooling water generated by equipment in the park through a manifold network and a high-temperature buffer water tank, receive high-temperature steam generated by equipment in the park through a steam pipe, further heat the high-temperature cooling water discharged from the high-temperature buffer water tank through a second heat exchanger, and provide heat energy to the heating side through a first heat exchanger. This effectively utilizes the high-temperature cooling water and high-temperature steam generated by equipment in the park to heat the office buildings in the park, solving the technical problem that the existing water-based underfloor heating systems in park office buildings use gas / coal boilers for heating, which fail to effectively utilize the high-temperature cooling water and high-temperature steam generated by equipment in the park, resulting in energy waste and increased carbon emissions.
[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0036] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0039] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.
[0040] This application provides a zero-carbon park circulating heating system, such as... Figure 1 and Figure 2 As shown. A zero-carbon park circulating heating system includes a high-temperature water supply side, a high-temperature steam supply side, a first heat exchanger 1, a second heat exchanger 2, heat exchange tubes 3, and a heating side.
[0041] The first heat exchanger 1 and the second heat exchanger 2 can be plate heat exchangers.
[0042] One end of the manifold is connected to the high-temperature cooling water discharged from the equipment in the park, and the other end is connected to the inlet side of the high-temperature buffer water tank 4. The outlet side of the high-temperature buffer water tank 4 is connected to the first circulating pump 5 through the outlet pipe 8. The high-temperature buffer water tank 4 is equipped with a level gauge and a third temperature sensor. The outlet pipe 8 is equipped with a first valve 9. The other end of the first circulating pump 5 is connected to the hot end inlet of the first heat exchanger 1. The hot end outlet of the first heat exchanger 1 is connected to the inlet side of the cooling water tank 6. The outlet side of the cooling water tank 6 is connected to the water supply pump 7. The other end of the water supply pump 7 is connected to the decentralized pipe network. The decentralized pipe network is connected to the equipment in the park to provide low-temperature cooling water to the equipment.
[0043] Specifically, the manifold network includes a main manifold 32 and several branch manifolds 33. One end of each branch manifold 33 is connected to a device, and the other end is connected to the main manifold 32. A flow valve 34 is installed on each branch manifold 33. The other end of the main manifold 32 is connected to the high-temperature buffer water tank 4. A Y-type filter 35 is installed on the main manifold 32. The distribution network includes a main distribution manifold 36 and several branch distributions 37. One end of each branch distributions 37 is connected to a device, and the other end is connected to the main distribution manifold 36. A flow valve 38 is installed on each branch distributions 37. The other end of the main distribution manifold 36 is connected to the cooling water tank 6. A fourth temperature sensor is installed inside the cooling water tank 6.
[0044] The aforementioned equipment can be a rolling mill in a steelmaking and metallurgical industrial park or a heating furnace. The high-temperature buffer water tank 4 is also equipped with an exhaust port and an overflow port. Specifically, the manifold branch pipe 33 is connected to the original cooling water discharge pipe of the aforementioned equipment through the manifold flow valve 34. That is, the high-temperature cooling water discharged by the aforementioned equipment can either be directed to the cooling tower in the park as originally set (when underfloor heating is not required in summer) or enter this system through the manifold branch pipe 33 (when underfloor heating is required in winter). At the same time, the manifold flow valve 34 can also control the flow rate of the high-temperature cooling water entering the manifold branch pipe 33. The level gauge is used to measure the liquid level in the high-temperature buffer water tank 4. The third temperature sensor is used to monitor the temperature of the water in the high-temperature buffer water tank 4. Specifically, the dispersion branch pipe 37 is connected to the original cooling water inlet pipe of the aforementioned equipment through the dispersion flow valve 38. The dispersion flow valve 38 can control the flow rate of the cooling water entering the equipment cooling water inlet pipe through the dispersion branch pipe 37 by adjusting the opening. The fourth temperature sensor is used to monitor the temperature of the water in the cooling water tank 6.
[0045] The high-temperature steam supply side includes a steam pipe 10, a pressure reducing valve 11, and a gas-water separator 12. The middle part of the steam pipe 10 is connected to the hot end of the second heat exchanger 2. One end of the steam pipe 10 is connected to the equipment in the park to receive high-temperature steam, and the other end is connected to the cooling tower in the park. The pressure reducing valve 11 and the gas-water separator 12 are both located at the end of the steam pipe 10 near the equipment, and the gas-water separator 12 is located downstream of the pressure reducing valve 11. The heat exchange pipe 3 is connected to the cold end of the second heat exchanger 2, and both ends of the heat exchange pipe 3 are connected to the outlet pipe 8 and located at both ends of the first valve 9. A second valve 13 is provided at the end of the heat exchange pipe 3 near the high-temperature buffer water tank 4. The heating side is connected to the cold end of the first heat exchanger 1 to provide heating for the office building 14 in the park.
[0046] The aforementioned equipment can be a steel rolling heating furnace. Specifically, the steam pipe 10 is connected to the original exhaust pipe of the equipment, which is connected to the cooling tower, through a shut-off valve. The pressure reducing valve 11 and the gas-water separator 12 are sequentially installed at the end of the shut-off valve furthest from the equipment. During use, if the high-temperature cooling water generated by the equipment is insufficient in terms of heat energy during the cold winter months, it can provide enough heat energy to the heating side. In this case, the shut-off valve and the second valve 13 can be opened, and the first valve 9 can be closed. The high-temperature cooling water coming out of the high-temperature buffer water tank 4 is further heated by high-temperature steam to increase the heat energy carried by the high-temperature cooling water. If the high-temperature cooling water generated by the equipment carries enough heat energy in early winter, the shut-off valve and the second valve 13 can be closed, and the first valve 9 can be opened to provide heat using only the heat energy of the high-temperature cooling water itself, preventing excessive heat energy carried by the high-temperature cooling water and causing the temperature on the heating side to be too high.
[0047] The heating side includes a water supply pipe 15, a manifold 16, several water supply branch pipes 17, several underfloor heating coils, several return water branch pipes 18, a water collector 19, a return water pipe 20, and a temperature control unit. One end of the water supply pipe 15 is connected to the cold end outlet of the first heat exchanger 1, and the other end is connected to the manifold 16. The other end of the manifold 16 is connected to several of the water supply branch pipes 17. The several underfloor heating coils are respectively installed on different floors of the office building 14 in the park. One end of the underfloor heating coil is connected to a water supply branch pipe 17, and the other end is connected to a water return branch pipe 18. A dynamic balancing valve 31 is installed on the water supply branch pipe. The other end of the several water return branch pipes 18 is connected to the water collector 19. The other end of the water collector 19 is connected to the water return pipe 20. The other end of the water return pipe 20 is connected to the cold end inlet of the first heat exchanger 1, and a second circulation pump 21 is installed on it. The temperature control unit includes a first tee fitting 22. The system comprises a second tee fitting 23, a temperature control connecting pipe 24, a first temperature sensor 25, a second temperature sensor 26, a first heating flow valve 27, and a second heating flow valve 28. Both ends of the first tee fitting 22 are connected to the water supply pipe 15, and both ends of the second tee fitting 23 are connected to the return water pipe 20. The third ends of the first tee fitting 22 and the second tee fitting 23 are connected through the temperature control connecting pipe 24. The first temperature sensor 25 is located on the water supply pipe 15 and at the end of the first tee fitting 22 near the water distributor 16. The second temperature sensor 26 is located on the return water pipe 20 and at the end of the second tee fitting 23 near the water collector 19. The first heating flow valve 27 is located on the return water pipe 20 and at the end of the second tee fitting 23 near the first heat exchanger 1. The second heating flow valve 28 is located on the temperature control connecting pipe 24.
[0048] The first temperature sensor 25 is used to collect the temperature of the underfloor heating water entering the manifold 16. The second temperature sensor 26 is located at the end of the second circulation pump 21 away from the collector 19 and is used to collect the temperature of the underfloor heating return water pumped out by the second circulation pump 21 after the underfloor heating coil has completed heat dissipation. When the temperature collected by the first temperature sensor 25 is higher than the required underfloor heating water temperature of the office building 14, the second heating flow valve 28 is opened. The underfloor heating return water with a lower temperature after heat dissipation enters the water supply pipe 15 from the temperature control connection pipe 24, thereby reducing the temperature of the underfloor heating water entering the manifold 16 and preventing the underfloor heating of the office building 14 from overheating.
[0049] In some preferred embodiments, a replenishment pipe 29 is connected to the water supply pipe 15, and a switch valve 30 is provided on the replenishment pipe 29 so that when the underfloor heating water on the heating side leaks, it can be replenished through the replenishment pipe 29.
[0050] In some preferred embodiments, a drain valve 39 is provided at the hot end outlet of the second heat exchanger 2. The other end of the drain valve 39 is connected to the cooling water tank 6. By providing the drain valve 39, the condensate in the second heat exchanger 2 can be effectively discharged to prevent the condensate from affecting the heat exchange efficiency of the second heat exchanger 2. At the same time, the generated condensate enters the cooling water tank 6 to replenish the cooling water and save water resources.
[0051] In some preferred embodiments, a photovoltaic power generation unit is also included, which includes a plurality of photovoltaic panels 40, a combiner box 41, a photovoltaic controller 42, and an energy storage battery 43. The plurality of photovoltaic panels 40 are mounted on the roof of the office building 14 by brackets and are all electrically connected to the combiner box 41. The combiner box 41 is connected to the photovoltaic controller 42, and the photovoltaic controller 42 is electrically connected to the energy storage battery 43 to charge the energy storage battery 43.
[0052] The photovoltaic panel 40 converts solar energy into electrical energy. The combiner box 41 collects the electrical energy generated by the photovoltaic panels 40 and charges the energy storage battery 43 through the photovoltaic controller 42. The energy storage battery 43 provides power to electrical devices such as the second circulation pump 21, the first temperature sensor 25, and the second temperature sensor 26, saving grid power consumption and reducing carbon emissions. It should be noted that, depending on whether the electrical devices require DC or AC power and their rated voltage, those skilled in the art can reasonably design inverter, voltage regulator, boost, or buck circuits. Since the specific connection circuit is not the focus of this application, this application does not limit the specific power supply circuit of the energy storage battery 43, and therefore will not elaborate on it.
[0053] In summary, the zero-carbon park circulating heating system provided in this application utilizes a manifold network and a high-temperature buffer tank to receive high-temperature cooling water generated by equipment within the park, receives high-temperature steam generated by equipment within the park through steam pipes, further heats the high-temperature cooling water discharged from the high-temperature buffer tank through a second heat exchanger, and provides heat energy to the heating side through a first heat exchanger. This effectively utilizes the high-temperature cooling water and high-temperature steam generated by equipment within the park to heat office buildings within the park, solving the technical problem in existing water-based underfloor heating systems in park office buildings that use gas / coal-fired boilers for heating, failing to effectively utilize the high-temperature cooling water and high-temperature steam generated by equipment within the park, resulting in energy waste and increased carbon emissions.
[0054] The foregoing has provided a detailed description of a zero-carbon park circulating heating system provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A zero-carbon park area circulating heating system, characterized in that, It includes a high-temperature water supply side, a high-temperature steam supply side, a first heat exchanger, a second heat exchanger, heat exchange tubes, and a heating side; The high-temperature water supply side includes a manifold network, a high-temperature buffer tank, a first circulation pump, a cooling water tank, a water supply pump, and a distributed network; One end of the manifold is connected to the high-temperature cooling water discharged from the equipment in the park, and the other end is connected to the inlet side of the high-temperature buffer water tank. The outlet side of the high-temperature buffer water tank is connected to the first circulating pump through the outlet pipe. A first valve is installed on the outlet pipe. The other end of the first circulating pump is connected to the hot end inlet of the first heat exchanger. The hot end outlet of the first heat exchanger is connected to the inlet side of the cooling water tank. The outlet side of the cooling water tank is connected to the water supply pump. The other end of the water supply pump is connected to the decentralized pipe network. The decentralized pipe network is connected to the equipment in the park to provide low-temperature cooling water to the equipment. The high-temperature steam supply side includes a steam pipe, a pressure reducing valve, and a gas-water separator. The middle part of the steam pipe is connected to the hot end of the second heat exchanger. One end of the steam pipe is connected to the equipment in the park to receive high-temperature steam, and the other end is connected to the cooling tower in the park. The pressure reducing valve and the gas-water separator are both located at the end of the steam pipe near the equipment, and the gas-water separator is located downstream of the pressure reducing valve. The heat exchange tube is connected to the cold end of the second heat exchanger, and both ends of the heat exchange tube are connected to the outlet pipe and located at both ends of the first valve. A second valve is provided at the end of the heat exchange tube near the high-temperature buffer water tank. The heating side is connected to the cold end of the first heat exchanger to provide heating for the office buildings in the park.
2. The zero-carbon park district circulatory heating system of claim 1, wherein, The heating side includes a water supply pipe, a water distributor, several water supply branch pipes, several floor heating coils, several return water branch pipes, a water collector, and a return water pipe. One end of the water supply pipe is connected to the cold end outlet of the first heat exchanger, and the other end is connected to the water distributor. The other end of the water distributor is connected to several water supply branch pipes. Several floor heating coils are respectively installed on different floors of the office building in the park. One end of each floor heating coil is connected to a water supply branch pipe, and the other end is connected to a return water branch pipe. The other end of several return water branch pipes is connected to the water collector. The other end of the water collector is connected to the return water pipe. The other end of the return water pipe is connected to the cold end inlet of the first heat exchanger, and a second circulation pump is installed on it.
3. The zero-carbon park district circulatory heating system of claim 2, wherein, The heating side is provided with a temperature control unit, which includes a first tee fitting, a second tee fitting, a temperature control connecting pipe, a first temperature sensor, a second temperature sensor, a first heating flow valve, and a second heating flow valve. The first tee fitting has two ends connected to the water supply pipe, and the second tee fitting has two ends connected to the return water pipe. The third ends of the first tee fitting and the second tee fitting are connected through the temperature control connecting pipe. The first temperature sensor is installed on the water supply pipe and is located at the end of the first tee fitting near the water distributor. The second temperature sensor is installed on the return water pipe and is located at the end of the second tee fitting near the water collector. The first heating flow valve is installed on the return water pipe and is located at the end of the second tee fitting near the first heat exchanger. The second heating flow valve is installed on the temperature control connecting pipe.
4. The zero-carbon park precinct circulating heating system of claim 2, wherein, The water supply pipe is connected to a replenishment pipe, and the replenishment pipe is equipped with a switch valve.
5. The zero-carbon park precinct circulating heating system of claim 2, wherein, A dynamic balancing valve is installed on the water supply branch pipe.
6. The zero-carbon park precinct circulating heating system of claim 1, wherein, The high-temperature buffer tank is equipped with a level gauge and a third temperature sensor.
7. The zero-carbon park precinct circulating heating system of claim 1, wherein, The manifold network includes a main manifold and several branch manifolds; Each of the manifold branch pipes is connected to a device at one end and to the main manifold at the other end. A manifold flow valve is installed on the manifold branch pipe. The other end of the main manifold is connected to the high-temperature buffer water tank. A Y-type filter is installed on the main manifold.
8. The zero-carbon park precinct circulating heating system of claim 1, wherein, The decentralized pipeline network includes decentralized main pipes and several decentralized branch pipes; Each of the distributed branch pipes has one end connected to a device and the other end connected to the distributed main pipe. A distributed flow valve is installed on the distributed branch pipe. The other end of the distributed main pipe is connected to the cooling water tank. A fourth temperature sensor is installed inside the cooling water tank.
9. The zero-carbon park precinct circulating heating system of claim 1, wherein, The hot end outlet of the second heat exchanger is equipped with a drain valve, and the other end of the drain valve is connected to the cooling water tank.
10. The zero-carbon park precinct circulating heating system of claim 1, wherein, It also includes a photovoltaic power generation unit, which comprises several photovoltaic panels, a combiner box, a photovoltaic controller, and an energy storage battery; Several photovoltaic panels are mounted on the roof of the office building via brackets and are electrically connected to the combiner box. The combiner box is connected to the photovoltaic controller, and the photovoltaic controller is electrically connected to the energy storage battery to charge the energy storage battery.