System for relieving distributed central heating cold island effect

Abstract

The utility model belongs to the technical field of water supply cold water step-level waste heat utilization, and discloses a system for relieving a distributed central heating cold island effect, which comprises an air source heat pump and a noise elimination and sound insulation room for accommodating the air source heat pump, and is characterized in that the noise elimination and sound insulation room comprises two side walls, a front wall, a rear wall and a top wall, two variable-frequency axial flow fans are symmetrically arranged at the upper end of the access door, ventilation louver fans are arranged on the two side walls and the rear wall, and electric control valves are installed on the air source heat pump, the ventilation louver fans and the variable-frequency axial flow fans. An electromagnetic control valve of the variable-frequency axial flow fan is connected with the air source heat pump and an electric control valve of the ventilation louver fan through control cables, and a horizontal fan coil and / or a radiator and a pipeline system are / is further arranged in the noise elimination and sound insulation room.

Description

Technical Field

[0001] This application belongs to the technical field of cascade waste heat utilization of cold water for water supply, and particularly relates to a system for alleviating the cold island effect of distributed central heating. Background Art

[0002] The air source heat pump is recognized by the market as the best solution for distributed clean energy central heating. However, due to extracting heat from the surrounding environment and considering the problem of high noise in the batch modular setting of the unit, an anechoic and soundproof machine room is usually set up in the energy station. Although the noise is reduced, the air flow convection heat transfer is not smooth at the same time, and the temperature in the anechoic and soundproof machine room is much lower than the surrounding environment, resulting in a sharp decline in the heat production and heat transfer efficiency of the air source heat pump equipment, further exacerbating the cold island effect of the energy station. Summary of the Invention

[0003] This application provides a system for alleviating the cold island effect of distributed central heating to solve the technical problem of the cold island effect caused by the poor air flow convection heat transfer in the anechoic and soundproof room.

[0004] The technical solution adopted in this application is as follows:

[0005] A system for alleviating the cold island effect of distributed central heating includes an air source heat pump and an anechoic and soundproof room for accommodating the air source heat pump. The anechoic and soundproof room includes two side walls, a front wall, a rear wall and a top wall. There is an access door on the front wall, and two variable frequency axial flow fans are symmetrically arranged at the upper end of the access door. Ventilation louvers are arranged on both side walls and the rear wall. Electric control valves are installed on the air source heat pump, the ventilation louvers and the variable frequency axial flow fans, and the electromagnetic control valve of the variable frequency axial flow fan is connected to the electric control valves of the air source heat pump and the ventilation louvers through control cables. A horizontal fan coil unit and / or a radiator and a pipeline system are also arranged in the anechoic and soundproof room.

[0006] Optionally, a climate compensator is arranged on the top wall of the anechoic and soundproof room, and the climate compensator controls the variable frequency axial flow fan through an electric control program.

[0007] Optionally, the ventilation louver includes a window frame, a plurality of rotating shafts and a plurality of blades corresponding to the rotating shafts. The blades are fixedly connected to the rotating shafts, and the rotating shafts are connected to the electric control valves.

[0008] Optionally, the horizontal fan coil unit is hoisted on the top wall of the anechoic and soundproof room, and the horizontal fan coil unit is connected in series with the air source heat pump through a pipeline system.

[0009] Optionally, the horizontal fan coil unit is fixedly installed on the side wall of the anechoic and soundproof room, and the horizontal fan coil unit is connected in series with the air source heat pump through a pipeline system.

[0010] Optionally, the radiator is a fin structure with a fan and is fixedly installed on the side wall of the soundproof and noise-insulating room. The fins are welded inside the radiator pipes.

[0011] Optionally, several alarm devices and monitoring devices are provided inside and outside the soundproof and noise-insulating room. The alarm device includes a smoke sensor and a warning light, and the monitoring device includes a camera and a monitor.

[0012] Optionally, the alarm device includes a smoke sensor installed inside the soundproof and noise-insulating room and a warning light set outside. The monitoring device includes a camera installed inside the soundproof and noise-insulating room and a remote monitor connected to the camera. The warning light outside is connected to the remote monitor through signal transmission. Description of the Drawings

[0013] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0014] Figure 1 is a plan view of the radiator installation for a system of the present application for alleviating the cold island effect of distributed central heating;

[0015] Figure 2 is a plan view of the horizontal fan coil unit installation for a system of the present application for alleviating the cold island effect of distributed central heating.

[0016] 1. Air source heat pump; 2. Ventilation louver; 3. Variable frequency axial flow fan; 4. Horizontal fan coil unit; 5. Radiator; 6. Pipeline system. Detailed Embodiments

[0017] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the drawings of the specification.

[0018] In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that, without conflict, the embodiments of the present application and the features in each embodiment may be combined with each other.

[0019] In addition, in the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0020] In this application, unless otherwise clearly defined and limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0022] As Figure 1 and Figure 2 shown, a system for alleviating the cold island effect of distributed central heating includes an air source heat pump 1 and a soundproof and noise-insulating room for accommodating the air source heat pump 1. The soundproof and noise-insulating room includes two side walls, a front wall, a rear wall, and a top wall. The front wall is provided with an access door, and two variable-frequency axial fans 3 are symmetrically arranged at the upper end of the access door. Ventilation louvers 2 are provided on both side walls and the rear wall. Electric control valves are installed on the air source heat pump 1, the ventilation louvers 2, and the variable-frequency axial fans 3. Moreover, the electromagnetic control valve of the variable-frequency axial fan 3 is connected to the electric control valves of the air source heat pump 1 and the ventilation louvers 2 through control cables. A horizontal fan coil unit 4 and / or a radiator 5 and a pipeline system 6 are also provided in the soundproof and noise-insulating room.

[0023] Furthermore, a climate compensator 6 is provided on the top wall of the soundproof and noise-insulating room, and the climate compensator 6 controls the variable-frequency axial fan 3 through an electric control program.

[0024] Still further, the ventilation louver 2 includes a window frame, a plurality of rotating shafts, and a plurality of blades corresponding to the rotating shafts. The blades are fixedly connected to the rotating shafts, and the rotating shafts are connected to the electric control valves.

[0025] By adopting the above technical solutions, the noise and sound insulation room includes side walls, front and rear walls, and a top wall that enclose to form a closed space to accommodate components such as the air source heat pump 1. The ventilation louvers are arranged on the side of the noise and sound insulation room with relatively weak convective heat exchange, that is, on the two side walls and the rear wall. The ventilation louvers adopt an electric mode to adjust the opening mode of the louvers and the limited ventilation area according to requirements. Two variable frequency axial fans 3 are symmetrically arranged at the upper end of the access door on the front wall to increase the convective heat exchange amount between the noise and sound insulation room and the surrounding environment. The variable frequency axial fans 3 complete signal feedback with the main unit of the air source heat pump 1 and the ventilation louvers through control cables. At the same time, a climate compensator 6 is arranged in the noise and sound insulation room. The climate compensator 6 controls the operating frequency of the variable frequency axial fans 3 through an electric control program by real-time monitoring the temperature difference between the inside of the noise and sound insulation room and the temperature of the surrounding environment.

[0026] When the main unit of the air source heat pump 1 in the noise and sound insulation room is not turned on, the variable frequency axial fans 3 receive a shutdown signal, the variable frequency axial fans 3 stop running, and at the same time, the variable frequency axial fans 3 feedback the control signal to the electric control valve of the ventilation louvers, and the electric control valve closes. When the main unit of the air source heat pump 1 in the noise and sound insulation room is turned on, the variable frequency axial fans 3 receive an opening signal, the variable frequency axial fans 3 start running, and at the same time, the variable frequency axial fans 3 feedback the control signal to the electric control valve of the ventilation louvers, and the electric control valve opens.

[0027] In a preferred embodiment, as Figure 2 shown, the horizontal fan coil unit 4 is hoisted on the top wall of the noise and sound insulation room, and the horizontal fan coil unit 4 is connected in series with the air source heat pump 1 through a pipeline system.

[0028] In other embodiments, as Figure 2 shown, the horizontal fan coil unit 4 is fixedly installed on the side wall of the noise and sound insulation room, and the horizontal fan coil unit 4 is connected in series with the air source heat pump 1 through a pipeline system.

[0029] Furthermore, the radiator 5 is a fin structure with a fan and is fixedly installed on the side wall of the noise and sound insulation room, and the fins are welded inside the pipes of the radiator 5.

[0030] By adopting the above technical solutions, the horizontal fan coil unit 4 and / or the radiator 5 are set for places with a large amount of low-grade heat. After the air source heat pump 1 unit heats the water, the hot water is transported to the horizontal fan coil unit 4 through the pipeline system. When the hot water flows through the horizontal fan coil unit 4, the built-in fan in the coil sucks the air in the room, heats the air through the heat exchanger and then blows it out, thereby raising the indoor temperature. When the hot water flows through the radiator 5, the built-in fan forces the air through the blades to dissipate the heat into the noise and sound insulation room, raising the indoor temperature. Through the high-efficiency heat dissipation capacity of the fan coil unit and the radiator 5, the air source heat pump 1 unit can operate under relatively stable working conditions, reduce frequent starts and stops, and improve the operating efficiency.

[0031] Furthermore, several alarm devices and monitoring devices are arranged inside and outside the anechoic and sound-insulating chamber. The alarm devices include smoke sensors and warning lights, and the monitoring devices include cameras and monitors.

[0032] Furthermore, the alarm devices include smoke sensors installed inside the anechoic and sound-insulating chamber and warning lights arranged outside, and the monitoring devices include cameras installed inside the anechoic and sound-insulating chamber and remote monitors connected to the cameras. The warning lights outside are connected to the remote monitors through signal transmission.

[0033] By adopting the above technical solution, the smoke sensors are installed on the inner side wall of the anechoic and sound-insulating chamber, and the warning lights are installed on the outer side wall of the anechoic and sound-insulating chamber. They are connected to the control system through signal lines to monitor the environmental parameters in real time and transmit data. When it is detected that there is smoke or the concentration of harmful gases increases inside the anechoic and sound-insulating chamber, the warning lights emit alarm signals to remind relevant personnel to handle it in time. The cameras and monitors are connected to the control center through the network to transmit video data and environmental information in real time, and relevant personnel can view and record the operation status of the system in real time.

[0034] Working principle: When the air source heat pump 1 starts, according to the instructions of the intelligent control system, the opening and closing angles of the blades of the ventilation louvers are automatically adjusted to ensure reasonable exchange of indoor and outdoor air. The variable-frequency axial flow fan 3 adjusts the wind speed and air volume according to the instructions of the climate compensator 6 to quickly discharge the cold air inside the anechoic and sound-insulating chamber and reduce the cold island effect. At the same time, the climate compensator 6 monitors the external climate conditions in real time and automatically adjusts the operating state of the variable-frequency axial flow fan 3 to ensure that the system operates in the best working state. The air source heat pump 1 extracts heat from the surrounding environment, heats the water and transports it to the horizontal fan coil unit 4 and the fin structure radiator 5 with a fan through the pipeline system. The horizontal fan coil unit 4 inhales the air inside the anechoic and sound-insulating chamber, heats it through the heat exchanger and blows it out to increase the indoor temperature, while the fin structure radiator 5 with a fan further improves the indoor temperature through forced convection design for efficient heat dissipation.

[0035] What is not described in this application can be realized by adopting or referring to the existing technologies.

[0036] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0037] The above are only the embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

1. A system for alleviating the cold island effect of distributed central heating, comprising an air source heat pump (1) and a noise and sound insulation room accommodating the air source heat pump (1), characterized in that: The noise and sound insulation chamber includes two side walls, a front wall, a rear wall and a top wall. An access door is provided on the front wall, and two variable-frequency axial fans (3) are symmetrically arranged at the upper end of the access door. Ventilation louvers (2) are provided on both side walls and the rear wall. Electric control valves are installed on the air source heat pump (1), the ventilation louvers (2) and the variable-frequency axial fans (3). The electromagnetic control valve of the variable-frequency axial fan (3) is connected to the electric control valves of the air source heat pump (1) and the ventilation louvers (2) through control cables. A horizontal fan coil unit (4) and / or a radiator (5) and a piping system are also provided in the noise and sound insulation chamber.

2. The system for alleviating the cold island effect of distributed central heating according to claim 1, wherein: A climate compensator (6) is provided on the top wall of the noise and sound insulation chamber, and the climate compensator (6) controls the variable-frequency axial fan (3) through an electric control program.

3. The system for alleviating the cold island effect of distributed central heating according to claim 1, characterized in that: The ventilation louver (2) includes a window frame, a plurality of rotating shafts and a plurality of blades corresponding to the rotating shafts. The blades are fixedly connected to the rotating shafts, and the rotating shafts are connected to the electric control valve.

4. The system for alleviating the cold island effect of distributed central heating according to claim 1, wherein: The horizontal fan coil unit (4) is hoisted on the top wall of the noise and sound insulation chamber, and the horizontal fan coil unit (4) is connected in series with the air source heat pump (1) through a piping system.

5. The system for alleviating the cold island effect of distributed central heating according to claim 1, characterized in that: The horizontal fan coil unit (4) is fixedly installed on the side wall of the noise and sound insulation chamber, and the horizontal fan coil unit (4) is connected in series with the air source heat pump (1) through a piping system.

6. The system for alleviating the cold island effect of distributed central heating according to claim 1, characterized in that: The radiator (5) is a fin structure with a fan and is fixedly installed on the side wall of the noise and sound insulation chamber, and the fins are welded inside the pipes of the radiator (5).

7. A system for alleviating the cold island effect of distributed central heating according to claim 1, characterized in that: A number of alarm devices and monitoring devices are provided inside and outside the noise and sound insulation chamber. The alarm devices include smoke sensors and warning lights, and the monitoring devices include cameras and monitors.

8. A system for alleviating the cold island effect of distributed central heating according to claim 7, characterized in that: The alarm device includes a smoke sensor installed inside the noise and sound insulation chamber and a warning light arranged outside. The monitoring device includes a camera installed inside the noise and sound insulation chamber and a remote monitor connected to the camera. The outdoor warning light is connected to the remote monitor through signal transmission.

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