Commercial linkage energy-saving device

Abstract

The utility model discloses a commercial linkage energy-saving device which comprises a controller, a fire pool, a heat pump, a commercial boiler, a hot water tank, a first plate heat exchanger and a second plate heat exchanger. The fire pool is communicated with the first plate heat exchanger through a first water supply pipeline and a first water return pipeline, the second plate heat exchanger is communicated with the heat pump through a second water supply pipeline and a second water return pipeline, and the commercial boiler is communicated with the second water supply pipeline through a third water supply pipeline and a third water return pipeline. And the fire pool is communicated with the second water supply pipeline through a fourth water supply pipeline. The commercial linkage energy-saving device is simple in structure and convenient to use, the configuration number of equipment can be properly reduced according to requirements, a fire pool is effectively transformed and utilized, the utilization rate of each piece of equipment is improved, and through intelligent linkage of the controller, the efficiency of each piece of equipment is effectively improved, energy is saved, emission is reduced, and the operation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, and particularly relates to a commercial linkage energy-saving device. Background Art

[0002] The existing mainstream commercial HVAC products on the market are commercial heat pumps and commercial boilers:

[0003] Using a commercial heat pump alone occupies a large area, has poor heating stability and low comfort, but can effectively utilize the heat provided by the environment, and is energy-saving and environmentally friendly under special environmental conditions.

[0004] The emissions of using a commercial boiler alone are a bit worse than those of a heat pump, and it cannot refrigerate in summer, but the heat source is constant in winter and the comfort is high.

[0005] The existing main solutions on the market are to provide heating and refrigeration separately, and the two cannot be effectively linked and cannot be effectively coordinated and matched in function.

[0006] Based on the above situation, the utility model proposes a commercial linkage energy-saving device, which can effectively solve the above problems. Summary of the Utility Model

[0007] The purpose of the utility model is to provide a commercial linkage energy-saving device. The commercial linkage energy-saving device of the utility model has a simple structure and is convenient to use. According to needs, the number of equipment configurations can be appropriately reduced, the fire fighting pool can be effectively transformed and utilized, the utilization rate of each equipment can be improved, and through the intelligent linkage of the controller, the efficiency of each equipment can be effectively improved, energy can be saved and emissions can be reduced, and the operation cost can be lowered.

[0008] The utility model is realized by the following technical solutions:

[0009] A commercial linkage energy-saving device includes a controller, a fire fighting pool, a heat pump, a commercial boiler, a hot water tank, a first plate heat exchanger and a second plate heat exchanger;

[0010] The fire pool is respectively connected to the first plate heat exchanger through a first water supply pipeline and a first water return pipeline. The second plate heat exchanger is respectively connected to the heat pump through a second water supply pipeline and a second water return pipeline. The commercial boiler is respectively connected to the second water supply pipeline through a third water supply pipeline and a third water return pipeline. The fire pool is connected to the second water supply pipeline through a fourth water supply pipeline. The fire pool is connected to the second water return pipeline through a fourth water return pipeline. The first plate heat exchanger is connected to the second water supply pipeline through a fifth water supply pipeline. The first plate heat exchanger is connected to the second water supply pipeline through a fifth water return pipeline. The commercial boiler is respectively connected to the hot water tank through a sixth water supply pipeline and a sixth water return pipeline. A first electric control valve is provided at the connection of the fourth water supply pipeline and the second water supply pipeline. A second electric control valve is provided at the connection of the fourth water return pipeline and the second water return pipeline. A third electric control valve is provided at the connection of the third water supply pipeline and the second water supply pipeline. A fourth electric control valve is provided at the connection of the third water return pipeline and the second water supply pipeline. A fifth electric control valve is provided at the connection of the fifth water supply pipeline and the second water supply pipeline. A sixth electric control valve is provided at the connection of the fifth water return pipeline and the second water return pipeline. The controller is respectively electrically connected to the first electric control valve, the second electric control valve, the third electric control valve, the fourth electric control valve, the fifth electric control valve, and the sixth electric control valve. The second plate heat exchanger is respectively connected to the terminal system through a seventh water supply pipeline and a seventh water return pipeline.

[0011] The purpose of the present utility model is to provide a commercial linkage energy-saving device. The commercial linkage energy-saving device of the present utility model has a simple structure and is convenient to use. According to requirements, the configuration quantity of equipment can be appropriately reduced, the fire pool can be effectively reformed and utilized, the utilization rate of each equipment can be improved, and through the intelligent linkage of the controller, the efficiency of each equipment can be effectively improved, energy can be saved and emissions can be reduced, and the operation cost can be lowered.

[0012] Preferably, a first temperature sensor is provided on the fourth water supply pipeline, and a second temperature sensor is provided on the fourth water return pipeline.

[0013] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0014] 1. According to requirements, the present utility model can appropriately reduce the configuration quantity of equipment, effectively reform and utilize the fire pool, and improve the utilization rate of each equipment;

[0015] 2. Through the intelligent linkage of the controller, the present utility model effectively improves the efficiency of each equipment, saves energy and reduces emissions, and lowers the operation cost.

[0016] 3. The present utility model can effectively utilize the disadvantage of low utilization rate at night in commercial places for energy storage and improve the comfort during daytime operation.

[0017] 4. The utility model solves the limitation that commercial heat pumps cannot be used in low-temperature areas, and improves the safety of the whole system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation of the utility model will be described below in conjunction with specific embodiments. However, it should be understood that the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent; in order to better illustrate this embodiment, some components in the drawings will be omitted, enlarged or reduced, which does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent.

[0020] Embodiment 1:

[0021] As Figure 1 shown, the utility model provides a commercial linkage energy-saving device, which includes a controller, a fire pool 2, a heat pump 3, a commercial boiler 4, a hot water tank 5, a first plate heat exchanger 6 and a second plate heat exchanger 7;

[0022] The fire pool 2 is respectively connected to the first plate heat exchanger 6 through a first water supply pipeline 21 and a first water return pipeline 22. The second plate heat exchanger 7 is respectively connected to the heat pump 3 through a second water supply pipeline 71 and a second water return pipeline 72. The commercial boiler 4 is respectively connected to the second water supply pipeline 71 through a third water supply pipeline 41 and a third water return pipeline 42. The fire pool 2 is connected to the second water supply pipeline 71 through a fourth water supply pipeline 23. The fire pool 2 is connected to the second water return pipeline 72 through a fourth water return pipeline 24. The first plate heat exchanger 6 is connected to the second water supply pipeline 71 through a fifth water supply pipeline 61. The first plate heat exchanger 6 is connected to the second water supply pipeline 71 through a fifth water return pipeline 62. The commercial boiler 4 is respectively connected to the hot water tank 5 through a sixth water supply pipeline 43 and a sixth water return pipeline 44. A first electric control valve 81 is provided at the connection of the fourth water supply pipeline 23 and the second water supply pipeline 71. A second electric control valve 82 is provided at the connection of the fourth water return pipeline 24 and the second water return pipeline 72. A third electric control valve 83 is provided at the connection of the third water supply pipeline 41 and the second water supply pipeline 71. A fourth electric control valve 84 is provided at the connection of the third water return pipeline 42 and the second water supply pipeline 71. A fifth electric control valve 85 is provided at the connection of the fifth water supply pipeline 61 and the second water supply pipeline 71. A sixth electric control valve 86 is provided at the connection of the fifth water return pipeline 62 and the second water return pipeline 72. The controller is electrically connected to the first electric control valve 81, the second electric control valve 82, the third electric control valve 83, the fourth electric control valve 84, the fifth electric control valve 85, and the sixth electric control valve 86. The second plate heat exchanger 7 is respectively connected to the terminal system 1 through a seventh water supply pipeline 73 and a seventh water return pipeline 74.

[0023] Embodiment 2:

[0024] As Figure 1 shown, the present utility model provides a commercial linkage energy-saving device, including a controller, a fire pool 2, a heat pump 3, a commercial boiler 4, a hot water tank 5, a first plate heat exchanger 6, and a second plate heat exchanger 7;

[0025] The fire pool 2 is respectively connected to the first plate heat exchanger 6 through a first water supply pipeline 21 and a first water return pipeline 22. The second plate heat exchanger 7 is respectively connected to the heat pump 3 through a second water supply pipeline 71 and a second water return pipeline 72. The commercial boiler 4 is respectively connected to the second water supply pipeline 71 through a third water supply pipeline 41 and a third water return pipeline 42. The fire pool 2 is connected to the second water supply pipeline 71 through a fourth water supply pipeline 23. The fire pool 2 is connected to the second water return pipeline 72 through a fourth water return pipeline 24. The first plate heat exchanger 6 is connected to the second water supply pipeline 71 through a fifth water supply pipeline 61. The first plate heat exchanger 6 is connected to the second water supply pipeline 71 through a fifth water return pipeline 62. The commercial boiler 4 is respectively connected to the hot water tank 5 through a sixth water supply pipeline 43 and a sixth water return pipeline 44. A first electric control valve 81 is provided at the connection between the fourth water supply pipeline 23 and the second water supply pipeline 71. A second electric control valve 82 is provided at the connection between the fourth water return pipeline 24 and the second water return pipeline 72. A third electric control valve 83 is provided at the connection between the third water supply pipeline 41 and the second water supply pipeline 71. A fourth electric control valve 84 is provided at the connection between the third water return pipeline 42 and the second water supply pipeline 71. A fifth electric control valve 85 is provided at the connection between the fifth water supply pipeline 61 and the second water supply pipeline 71. A sixth electric control valve 86 is provided at the connection between the fifth water return pipeline 62 and the second water return pipeline 72. The controller is electrically connected to the first electric control valve 81, the second electric control valve 82, the third electric control valve 83, the fourth electric control valve 84, the fifth electric control valve 85, and the sixth electric control valve 86. The second plate heat exchanger 7 is respectively connected to the terminal system 1 through a seventh water supply pipeline 73 and a seventh water return pipeline 74.

[0026] A first temperature sensor 91 is provided on the fourth water supply pipeline 23. A second temperature sensor 92 is provided on the fourth water return pipeline 24.

[0027] In winter, the main function is heating. The commercial boiler 4 assists the heat pump 3 in heating. When the heat of the heat pump 3 is insufficient, the commercial boiler 4 is used to heat the end of the heating system according to normal requirements. When the heat pump 3 can obtain sufficient heat sources, the heat pump 3 is fully utilized to heat the end of the heating system. When the heating demand is too low during the day or there is no heating demand, the heat pump 3 can be used to heat the fire pool 2 to store heat for use when there is a heating demand at night, fully utilizing the heat pump 3 while ensuring the comfort of the heating area. At the same time, the commercial boiler 4 can assist the heat pump 3 equipment in antifreeze.

[0028] In summer, the main supply is refrigeration. The utilization rate of commercial premises at night is relatively low, and the refrigeration demand is low. The heat pump 3 can obtain cold energy during the valley electricity period at night and store it in the fire fighting water tank, and then use it during the peak electricity period during the day or when the refrigeration is insufficient, ensuring to meet the full-time demand of users while effectively reducing costs, being energy-saving and environmentally friendly. At the same time, the boiler can supply hot water demand alone in summer.

[0029] 1. Winter heating and hot water operation plan

[0030] In winter, when the heat pump 3 can obtain sufficient heat sources, the heat pump 3 is preferentially used for heating, and the controller adjusts the three-way valve to form a path between the heat pump 3 and the plate heat exchanger at the end of the system for operation. At this time, the coefficient of performance of the heat pump 3 is relatively high. However, when there is no heating demand at the end of the system or the heating demand is very low (the ambient temperature is relatively high), the controller can collect information, make judgments and process it, and can open the heat exchange between the fire fighting water tank and the heat pump 3 to store the heat energy. When the coefficient of performance of the heat pump 3 for heating is lower than the third-level energy efficiency, when there is a heat demand at the heating end, the controller adjusts the system to use the heat stored in the fire fighting pool 2 to heat the heating end system 1 until the temperature difference between the outlet and return water of the fire fighting pool 2 is less than the set temperature △T1, and the system is adjusted to the series connection of the heat pump 3 and the commercial boiler 4. The heat pump 3 assists the commercial boiler 4 to supply heat to the heating end. At this time, the ambient temperature is theoretically relatively low, and the commercial boiler 4 can also assist the heat pump 3 to prevent freezing.

[0031] At the same time, commercial premises are generally only open during the day, and the required hot water temperature is relatively low (no need for bathing, only for handwashing). The commercial boiler 4 has a lot of time during the day to supply heat to the hot water storage tank.

[0032] 2. Summer refrigeration and hot water operation plan

[0033] In summer, at night with low temperature and during the valley electricity period, the utilization rate of commercial premises at night is relatively low, and the refrigeration demand is low. The controller preferentially adjusts the heat pump 3 to refrigerate the fire fighting pool 2 to store cold energy. When there is a refrigeration demand during the day, the cold energy stored at night in the fire fighting pool 2 is preferentially used for refrigeration. When the refrigeration is insufficient, the heat pump 3 is turned on to assist in refrigeration. The commercial boiler 4 can provide sufficient hot water demand throughout the day.

[0034] 3. System configuration description

[0035] The system controller can read and control all regulating valves, sensors, control units, electric meters, heat meters and flow meters in the system, including the demand of the end system 1, output commands through the operating conditions, control all system configurations, and at the same time can conduct energy-saving analysis and AI intelligent analysis and learning of the entire system to further optimize resource utilization.

[0036] Based on the description and drawings of the present invention, those skilled in the art can easily manufacture or use the commercial linkage energy-saving device of the present invention and can produce the positive effects recorded in the present invention.

[0037] Unless otherwise specified, in this utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial direction", "radial direction", "circumferential direction", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model 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. Therefore, the terms used to describe the orientation or positional relationship in this utility model are only for exemplary illustration and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood by combining the drawings and according to the specific situation.

[0038] Unless otherwise clearly specified and defined, in this utility model, if there are terms such as "arranged", "connected" and "coupled", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific situation.

[0039] The above are only the preferred embodiments of this utility model, and do not impose any formal limitations on this utility model. Any simple modifications and equivalent changes made to the above embodiments based on the technical essence of this utility model all fall within the protection scope of this utility model.

Claims

1. A commercial linkage energy-saving device, characterized in that: It includes a controller, a fire pool, a heat pump, a commercial boiler, a hot water tank, a first plate heat exchanger and a second plate heat exchanger; The fire pool is respectively connected to the first plate heat exchanger through a first water supply pipeline and a first water return pipeline. The second plate heat exchanger is respectively connected to the heat pump through a second water supply pipeline and a second water return pipeline. The commercial boiler is respectively connected to the second water supply pipeline through a third water supply pipeline and a third water return pipeline. The fire pool is connected to the second water supply pipeline through a fourth water supply pipeline. The fire pool is connected to the second water return pipeline through a fourth water return pipeline. The first plate heat exchanger is connected to the second water supply pipeline through a fifth water supply pipeline. The first plate heat exchanger is connected to the second water supply pipeline through a fifth water return pipeline. The commercial boiler is respectively connected to the hot water tank through a sixth water supply pipeline and a sixth water return pipeline. A first electric control valve is provided at the connection of the fourth water supply pipeline and the second water supply pipeline. A second electric control valve is provided at the connection of the fourth water return pipeline and the second water return pipeline. A third electric control valve is provided at the connection of the third water supply pipeline and the second water supply pipeline. A fourth electric control valve is provided at the connection of the third water return pipeline and the second water supply pipeline. A fifth electric control valve is provided at the connection of the fifth water supply pipeline and the second water supply pipeline. A sixth electric control valve is provided at the connection of the fifth water return pipeline and the second water return pipeline. The controller is respectively electrically connected to the first electric control valve, the second electric control valve, the third electric control valve, the fourth electric control valve, the fifth electric control valve and the sixth electric control valve. The second plate heat exchanger is respectively connected to the terminal system through a seventh water supply pipeline and a seventh water return pipeline.

2. The commercial linkage energy-saving device according to claim 1, wherein: A first temperature sensor is provided on the fourth water supply pipeline, and a second temperature sensor is provided on the fourth water return pipeline.

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