An energy-saving and emission-reduction device for building heating, ventilation and air conditioning

Abstract

This utility model relates to an energy-saving and emission-reduction device for building heating, ventilation and air conditioning in the field of energy conservation and emission reduction technology. It includes an energy center, a secondary energy station and a domestic hot water station. When used, the air conditioning power supply zone is planned to provide the regional summer cooling load in the form of "shallow ground source heat pump + electric chiller". The air conditioning cooling system adopts a direct supply system. According to the principle of giving priority to the use of renewable energy, the ground source heat pump is given priority to bear the basic cooling load of the region. The insufficient part is peak-shaving and guaranteed by the electric chiller. The air conditioning heating system is planned to adopt a direct supply + indirect supply coupling system. The shallow ground source heat pump is a direct supply system connected in parallel with the secondary side of the municipal heating. The heating system adopts an indirect supply system. When used, this application is not only more energy-efficient, but also has a smaller pipeline footprint, which greatly improves the convenience of construction and shortens the construction period. It is also more convenient for subsequent maintenance. At the same time, it is also convenient for personnel to clean the inside of the water inlet pipe.

Description

Technical Field

[0001] This utility model relates to an energy-saving and emission-reduction device for building heating, ventilation and air conditioning, and particularly to an energy-saving and emission-reduction device for building heating, ventilation and air conditioning applied in the field of energy conservation and emission reduction. Background Technology

[0002] Energy conservation and emission reduction in building heating, ventilation, and air conditioning systems have multiple important implications, mainly reflected in their huge proportion of energy consumption and carbon emissions—air conditioning systems account for 40% to 60% of the total energy consumption of a building and are the main source of carbon emissions from building operation. Reducing this part of energy consumption can directly reduce fossil fuel consumption and mitigate the greenhouse effect; addressing the continuously growing cooling demand—global climate change has led to frequent extreme high temperatures, coupled with urbanization and the development of the digital economy, resulting in a surge in cooling demand, as well as the energy-saving potential in the design and management stages.

[0003] Existing energy-saving and emission-reduction devices for building heating, ventilation and air conditioning occupy a large area, have a long construction period, and are inconvenient to maintain. In addition, the limited space for the water inlet pipes makes it difficult for personnel to clean the inside of the pipes later. Utility Model Content

[0004] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that the existing energy-saving and emission-reduction devices for building heating, ventilation and air conditioning occupy a large space, have a long construction period, and are inconvenient to maintain in the later stage. At the same time, due to the relatively small space of the water inlet pipe, it brings great difficulty to the personnel when cleaning the inside of the pipe in the later stage.

[0005] To address the aforementioned problems, this utility model provides an energy-saving and emission-reduction device for building heating, ventilation, and air conditioning, comprising an energy center, a secondary energy station, and a domestic hot water station;

[0006] The energy center is equipped with a primary hot water pipe network, and the secondary energy station is equipped with a secondary hot water pipe network and a cold water pipe network.

[0007] The primary hot water network is divided into primary heating hot water network and primary domestic hot water network according to different functional applicability;

[0008] The secondary hot water network is divided into secondary heating hot water network and secondary air conditioning hot water network according to the different end users.

[0009] The cold water network and the secondary hot water network are shared cold and hot water networks, and are centrally cooled by each of the secondary energy stations, providing cooling load to end users within the energy supply area of ​​each secondary energy station.

[0010] As a further improvement to this application, the primary hot water pipeline network is a hot water pipeline network supplied to individual users by gas boilers within the school. The primary hot water pipeline network within the area is connected to users indirectly, with volumetric heat exchangers installed on the user side. This indirect connection facilitates the safe operation, regulation, and management of the campus heating pipeline network. The planned starting point of the primary hot water pipeline network is located at the energy center, connecting to each domestic hot water station.

[0011] As a further improvement to this application, the primary hot water pipeline network in the area is connected to users indirectly, with a volumetric heat exchanger installed on the user side. This indirect connection facilitates the safe operation, regulation, and management of the campus heating pipeline network.

[0012] As a further improvement of this application, the primary heating hot water pipeline is connected to the school from the municipal heating network and laid within the red line of the school plot. The primary hot water pipeline in the area is connected to users indirectly and heat exchange takes place in the secondary energy station.

[0013] As another improvement of this application, an inlet pipe is provided on the primary hot water pipe network, secondary hot water pipe network, and cold water pipe network. An installation ring is fixedly connected to the inlet pipe by bolts. A motor is fixedly connected to the surface of the installation ring. A rotating rod is fixedly connected to the output end of the motor. One end of a connecting rope is wound around the rotating rod. A connecting plate is fixedly connected to the other end of the connecting rope. A connecting ring is fixedly connected to the end of the connecting plate away from the connecting rope. A filter plate is sleeved on the connecting plate. The filter plate has a slot adapted to the connecting rope. Both the filter plate and the connecting ring abut against the inner wall of the inlet pipe. The connecting plate is coated with a magnetic coating first. The filter plate is coated with a magnetic coating second that is magnetically attracted to the magnetic coating first. A pair of limiting grooves are provided on the inner wall of the inlet pipe. A pair of limiting blocks adapted to the limiting grooves are fixedly connected to the connecting ring.

[0014] As a further improvement to this application, the water inlet pipe is provided with a pull-out groove, and a semi-circular ring is movably inserted inside the pull-out groove. Sealing strips are fixedly connected to both the upper and lower sides of the semi-circular ring. A reinforcing block one is fixedly connected to a pair of sides of the semi-circular ring. A pair of reinforcing blocks two are fixedly connected to the water inlet pipe. The reinforcing block one is fixedly connected to the reinforcing block two by bolts.

[0015] As a further improvement to this application, a disassembly block is fixedly connected to the filter plate, and a sliding groove adapted to the disassembly block is provided on the inner wall of the water inlet pipe.

[0016] This application has the following beneficial effects when used:

[0017] 1. When this application is used, except for the residential area, all other areas will use an air conditioning cooling system. The air conditioning energy supply zone is planned to provide the regional summer cooling load using a "shallow ground source heat pump + electric chiller" method. The air conditioning cooling system adopts a direct supply system. Based on the principle of prioritizing the use of renewable energy, the ground source heat pump will be used to bear the basic regional cooling load first. The insufficient part will be peak-shaving and guaranteed by the electric chiller. The air conditioning heating system is planned to adopt a direct supply + indirect supply coupling system. The shallow ground source heat pump is a direct supply system connected in parallel with the secondary side of the municipal heating. The heating system adopts an indirect supply system. When this application is used, it is not only more energy-efficient, but also occupies less space for pipelines, which greatly improves the convenience of construction, thereby shortening the construction period, and subsequent maintenance is more convenient.

[0018] 2. Fill the inlet pipe with water and start the motor simultaneously, causing its output end to drive the rotating rod to rotate together, thus releasing the connecting rope. Under the impact of the water flow, the filter plate and connecting ring will slide inside the inlet pipe and gradually move away from the mounting ring. The filter plate can filter the water entering the inlet pipe, improving its cleanliness. After this application is used up, the above steps can be repeated to make the filter plate and connecting ring gradually move closer to the mounting ring inside the inlet pipe. The filter plate and connecting ring can be used to scrape the inner wall of the inlet pipe to reduce the amount of foreign matter adhering to the inner wall, greatly improving the convenience of cleaning the inner wall of the inlet pipe. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of the present application;

[0020] Figure 2 This is a schematic diagram of the pipeline network distribution in this application;

[0021] Figure 3 This is a schematic diagram of the mounting ring in this application;

[0022] Figure 4 This is a schematic diagram of the connecting ring in this application;

[0023] Figure 5 This is a magnified view of a portion of point A.

[0024] Figure 6 This is a magnified view of a portion of point B.

[0025] Figure 7 This is a schematic diagram of the filter plate in this application.

[0026] Explanation of the labels in the diagram:

[0027] 1. Mounting ring; 2. Inlet pipe; 3. Motor; 4. Rotating rod; 5. Connecting rope; 6. Connecting plate; 7. Connecting ring; 8. Filter plate; 9. Magnetic coating one; 10. Magnetic coating two; 11. Pull-out groove; 12. Semi-circular ring; 13. Sealing strip; 14. Reinforcing block one; 15. Reinforcing block two; 16. Sliding groove; 17. Limiting groove; 18. Limiting block. Detailed Implementation

[0028] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0029] First implementation method:

[0030] Figure 1-2 An energy-saving and emission-reduction device for building heating, ventilation and air conditioning is shown, including an energy center, a secondary energy station and a domestic hot water station;

[0031] The energy center is a single building that serves as the centralized heat source for domestic hot water for the entire university. It is primarily equipped with gas-fired hot water boilers and waste heat recovery heat pumps. The energy center supplies heat to the entire university through the primary heating network, and is responsible for peak-shaving and ensuring a reliable heat source for domestic hot water.

[0032] There are four secondary energy stations. In summer, shallow ground source heat pumps and chiller units are coupled in parallel to provide cooling for public buildings, prioritizing the use of ground source heat pumps, with electric chiller units supplementing any shortfall. In winter, shallow ground source heat pumps and heat exchanger units are coupled in parallel to provide heating, prioritizing the use of renewable energy sources, with heat exchanger units supplementing any shortfall. Station No. 2 is equipped with a shallow ground source heat pump to provide hot water for the gymnasium. The main heat source for dormitory heating is municipal heating and a shallow ground source heat pump system. The shallow ground source heat pumps and heat exchanger units are coupled in series for heating. Station No. 2 is equipped with a shallow ground source heat pump to provide hot water for the gymnasium (in conjunction with...). Figure 2 (as shown);

[0033] The domestic hot water station is mainly equipped with waste heat pumps for shower wastewater and volumetric heat exchangers. The waste heat pumps for shower wastewater, solar water heating, and volumetric heat exchangers are coupled to handle the domestic hot water load, giving priority to the use of solar energy and waste heat from shower wastewater. The volumetric heat exchangers are responsible for peak shaving and ensuring supply, and the heat source for the volumetric heat exchangers is the gas-fired boiler in the energy center.

[0034] The energy center is equipped with a primary hot water pipe network, and the secondary energy station is equipped with a secondary hot water pipe network and a cold water pipe network.

[0035] The primary hot water network is divided into primary heating hot water network and primary domestic hot water network according to different energy supply applicability. The municipal heat source supply and return water temperature is 110 / 50℃. The heating pipeline is laid along the EB3 planned road to the campus with a pipe diameter of DN450.

[0036] The secondary hot water network is divided into secondary heating hot water network and secondary air conditioning hot water network according to the different end users. The planning starting point of the secondary hot water network is the secondary energy station located on campus, and the pipe diameter is DN100~DN600.

[0037] The chilled water network and the secondary hot water network are shared, with centralized cooling provided by each of the secondary energy stations. This provides cooling load to end users within the power supply areas of each secondary energy station. The chilled water network is planned as follows: the chilled water network and the secondary hot water network are shared, with centralized cooling provided by each of the secondary energy stations. The design supply and return water temperatures are 5 / 12℃, and the design pressure is 1.0MPa.

[0038] The primary hot water pipeline network is a hot water pipeline network that supplies hot water to users from the gas boilers within the school. The primary hot water pipeline network in the area is connected to users indirectly. Volumetric heat exchangers are installed on the user side. The indirect connection facilitates the safe operation, regulation and management of the campus heating pipeline network. The planned starting point of the primary hot water pipeline network is located at the energy center and connects to each domestic hot water station.

[0039] The primary hot water pipeline network in the area is connected to users indirectly. Volumetric heat exchangers are installed on the user side. Indirect connection facilitates the safe operation, regulation and management of the campus heating network.

[0040] The primary heating hot water pipeline is connected to the school from the municipal heating network and laid within the school's land boundary. The primary hot water pipeline in the area is connected to users indirectly and undergoes heat exchange in the secondary energy station.

[0041] This solution is feasible. When in use, except for the residential clusters, all other clusters will use air conditioning cooling systems. Within the air conditioning energy supply zone, the summer cooling load will be provided by a combination of shallow ground source heat pumps and electric chillers. The air conditioning cooling system will be a direct supply system with supply and return water temperatures of 5 / 12℃. Based on the principle of prioritizing the use of renewable energy, the ground source heat pumps will be used to bear the basic cooling load of the area. Any shortfall will be covered by peak shaving and backup by electric chillers. The air conditioning heating system will be a direct supply + indirect supply coupling system, with municipal heating being an indirect supply system. The primary side supply and return water temperatures will be 110 / 50℃, and the secondary side supply and return water temperatures will be 50 / 40℃. The shallow ground source heat pump is a direct supply system connected in parallel with the secondary side of the municipal heating system, with supply and return water temperatures of 50 / 40℃. The heating system adopts an indirect supply system, with primary side supply and return water temperatures of 110 / 50℃ and secondary side supply and return water temperatures of 70 / 45℃. When this application is used, it is not only more energy-efficient, but also occupies less space for pipelines, which greatly improves the convenience of construction, thereby shortening the construction period, and subsequent maintenance is more convenient.

[0042] Second implementation method:

[0043] This embodiment adds the following structure based on the first embodiment, while the rest remains the same as the first embodiment, as detailed below:

[0044] Figure 3-7 The diagram shows an inlet pipe 2 installed on the primary hot water network, secondary hot water network, and cold water network. An installation ring 1 is bolted to the inlet pipe 2. A motor 3 is fixedly connected to the surface of the installation ring 1. A rotating rod 4 is fixedly connected to the output end of the motor 3. One end of a connecting rope 5 is wound around the rotating rod 4. A connecting plate 6 is fixedly connected to the other end of the connecting rope 5. A connecting ring 7 is fixedly connected to the end of the connecting plate 6 away from the connecting rope 5. A filter plate 8 is fitted onto the connecting plate 6. The filter plate 8 has a slot that matches the connecting rope 5. Both the filter plate 8 and the connecting ring 7 abut against the inner wall of the inlet pipe 2. The connecting plate 6 is coated with a magnetic coating 9, and the filter plate 8 is coated with a magnetic coating 10 that magnetically connects to the magnetic coating 9. A pair of limiting grooves 17 are provided on the inner wall of the inlet pipe 2. A pair of limiting blocks 18 that match the limiting grooves 17 are fixedly connected to the connecting ring 7. The limiting blocks 18 prevent the connecting ring 7 from rotating.

[0045] The water inlet pipe 2 is provided with a pull-out groove 11, and a semi-circular ring 12 is movably inserted inside the pull-out groove 11. Sealing strips 13 are fixedly connected to both the upper and lower sides of the semi-circular ring 12. A first reinforcing block 14 is fixedly connected to a pair of sides of the semi-circular ring 12. A pair of second reinforcing blocks 15 are fixedly connected to the water inlet pipe 2. The first reinforcing block 14 is fixedly connected to the second reinforcing block 15 by bolts.

[0046] A disassembly block is fixedly connected to the filter plate 8. A sliding groove 16 adapted to the disassembly block is opened on the inner wall of the water inlet pipe 2. When the filter plate 8 is moved, the disassembly block will move in the sliding groove 16.

[0047] This solution can be implemented. When using it, the filter plate 8 needs to be installed on the connecting ring 7. Then, multiple filter plates 8 and connecting rings 7 are inserted into the inlet pipes 2 of the primary hot water pipe network, secondary hot water pipe network and cold water pipe network respectively. Then, the installation ring 1 is put on the inlet pipe 2 and finally it is fixed to the inlet pipe 2 with bolts.

[0048] Water is injected into the inlet pipe 2. At the same time, the motor 3 is started, and its output end drives the rotating rod 4 to rotate together to release the connecting rope 5. Under the impact of the water flow, the filter plate 8 and the connecting ring 7 will slide inside the inlet pipe 2 and gradually move away from the mounting ring 1. The filter plate 8 can filter the water entering the inlet pipe 2 and improve its cleanliness.

[0049] During use, the motor 3 can be started periodically to rotate the rotating rod 4 at its output end, which will then wind up the connecting rope 5. Under the pull of the connecting rope 5, the filter plate 8 and the connecting ring 7 will move closer to the mounting ring 1. After moving to a certain position, the semi-circular ring 12 can be removed from the pull-out groove 11. Then, the filter plate 8 can be manually pulled up so that it passes through the pull-out groove 11 and is removed from the water inlet pipe 2. Finally, it can be cleaned to prevent foreign objects from clogging the filter plate 8 and ensure that the filter plate 8 can filter water normally.

[0050] After this application is used up, the above steps can be repeated so that the filter plate 8 and the connecting ring 7 gradually move towards the side of the mounting ring 1 inside the water inlet pipe 2. The filter plate 8 and the connecting ring 7 are used to scrape the inner wall of the water inlet pipe 2 to reduce the amount of foreign matter attached to its inner wall, which greatly improves the convenience of personnel cleaning the inner wall of the water inlet pipe 2.

[0051] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0052] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limiting the scope of protection of this application.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. An energy-saving and emission-reduction device for building heating, ventilation, and air conditioning, comprising an energy center, a secondary energy station, and a domestic hot water station, characterized in that: The energy center is equipped with a primary hot water pipe network, and the secondary energy station is equipped with a secondary hot water pipe network and a cold water pipe network. The primary hot water network is divided into primary heating hot water network and primary domestic hot water network according to different functional applicability; The secondary hot water network is divided into secondary heating hot water network and secondary air conditioning hot water network according to the different end users. The cold water network and the secondary hot water network are shared cold and hot water networks, and are centrally cooled by each of the secondary energy stations, providing cooling load to end users within the energy supply area of ​​each secondary energy station.

2. The energy-saving and emission-reduction device for building heating, ventilation and air conditioning according to claim 1, characterized in that: The primary hot water pipeline network is a hot water pipeline network that supplies hot water to individual users by gas boilers within the school. The primary hot water pipeline network in the area is connected to users indirectly. Volumetric heat exchangers are installed on the user side. The indirect connection facilitates the safe operation, regulation and management of the campus heating pipeline network. The planned starting point of the primary hot water pipeline network is located at the energy center and connects to each domestic hot water station.

3. The energy-saving and emission-reduction device for building heating, ventilation and air conditioning according to claim 1, characterized in that: The primary hot water pipeline network in the area is connected to users indirectly. Volumetric heat exchangers are installed on the user side. Indirect connection facilitates the safe operation, regulation and management of the campus heating network.

4. The energy-saving and emission-reduction device for building heating, ventilation and air conditioning according to claim 1, characterized in that: The primary heating hot water pipeline is connected to the school from the municipal heating network and laid within the school's land boundary. The primary hot water pipeline in the area is connected to users indirectly and undergoes heat exchange in the secondary energy station.

5. The energy-saving and emission-reduction device for building heating, ventilation and air conditioning according to claim 1, characterized in that: The primary hot water pipe network, secondary hot water pipe network, and cold water pipe network are equipped with inlet pipes (2). An installation ring (1) is fixedly connected to the inlet pipe (2) by bolts. A motor (3) is fixedly connected to the surface of the installation ring (1). A rotating rod (4) is fixedly connected to the output end of the motor (3). One end of a connecting rope (5) is wound around the rotating rod (4). A connecting plate (6) is fixedly connected to the other end of the connecting rope (5). A connecting ring (7) is fixedly connected to the end of the connecting plate (6) away from the connecting rope (5). A filter plate (8) is fitted on the water inlet pipe (2). The filter plate (8) has a slot for fitting the connecting rope (5). Both the filter plate (8) and the connecting ring (7) abut against the inner wall of the water inlet pipe (2). The connecting plate (6) is coated with a magnetic coating first (9). The filter plate (8) is coated with a magnetic coating second (10) that is magnetically connected to the magnetic coating first (9). A pair of limiting grooves (17) are provided on the inner wall of the water inlet pipe (2). A pair of limiting blocks (18) that fit the limiting grooves (17) are fixedly connected to the connecting ring (7).

6. The energy-saving and emission-reduction device for building heating, ventilation and air conditioning according to claim 5, characterized in that: The water inlet pipe (2) is provided with a pull-out groove (11), and a semi-circular ring (12) is movably inserted inside the pull-out groove (11). Sealing strips (13) are fixedly connected to both the upper and lower sides of the semi-circular ring (12). A first reinforcing block (14) is fixedly connected to a pair of sides of the semi-circular ring (12). A pair of second reinforcing blocks (15) are fixedly connected to the water inlet pipe (2). The first reinforcing block (14) is fixedly connected to the second reinforcing block (15) by bolts.

7. An energy-saving and emission-reduction device for building heating, ventilation and air conditioning according to claim 6, characterized in that: A disassembly block is fixedly connected to the filter plate (8), and a sliding groove (16) adapted to the disassembly block is provided on the inner wall of the water inlet pipe (2).

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