Air source heat pump device

Abstract

The utility model discloses an air source heat pump device, and belongs to the technical field of heat pumps. The device comprises a hot water circulating pump, an air heat exchanger, an air source heat pump unit and connecting pipelines among all the components, hot water return water is connected into the device, and hot water supply is output; the hot water circulating pump, the air heat exchanger and the air source heat pump unit are sequentially connected in series, the hot water return water can flow out through the hot water circulating pump, the air heat exchanger and the air source heat pump unit to be connected with hot water supply, and the hot water return water can flow out through the air heat exchanger or the air source heat pump unit to be connected with hot water supply. The air source heat pump device provided by the utility model can flexibly adjust three operation modes of supplying heat after directly extracting air energy, supplying heat by combining with the air source heat pump unit and supplying heat by independently operating the air source heat pump unit according to environment temperature and heat supply requirements, so that deep recycling of low-grade air heat energy is realized; meanwhile, the heat supply capacity of the device under the condition of insufficient air heat energy is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat pumps and relates to an air source heat pump device. Background Art

[0002] Industrial production industries such as chemical industry, energy and electricity, and machinery production generate a large amount of waste heat during the production process. Since these waste heat resources are of low quality, they are often not used. Some are directly discharged to the outside through ventilation, resulting in waste; some are directly dissipated into process plants or workshops. Due to heat accumulation, even in winter, the indoor temperature of some plants or workshops with large heat dissipation is as high as 30°C or above, which has an adverse effect on the physical and mental health of the staff. In-depth use of this low-quality air heat energy in the industrial production field to provide high-quality and stable heating or domestic hot water to the outside world can greatly reduce the energy consumption of auxiliary systems in the industrial production field and effectively guarantee industrial production. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide an air source heat pump device that can achieve deep recovery of air heat energy while performing composite heating.

[0004] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0005] The utility model provides an air source heat pump device, which includes: a hot water circulation pump, an air heat exchanger, an air source heat pump unit and connecting pipes between various components. The device is connected to hot water return water and outputs hot water supply water;

[0006] The hot water circulation pump, the air heat exchanger and the air source heat pump unit are connected in series in sequence, and the hot water return water can flow out through the hot water circulation pump, the air heat exchanger and the air source heat pump unit to connect to the hot water supply.

[0007] Furthermore, a first valve is provided on the connecting pipeline between the hot water circulation pump and the air heat exchanger, and a second valve is provided on the connecting pipeline between the air heat exchanger and the air source heat pump unit.

[0008] Furthermore, the air heat exchanger is connected to the hot water supply, and the hot water return water can flow out through the hot water circulation pump and the air heat exchanger to connect to the hot water supply.

[0009] Furthermore, a third valve is provided in the connecting pipeline between the air heat exchanger and the hot water supply.

[0010] Furthermore, the hot water circulation pump is connected to the second valve, and the hot water return water can flow out through the hot water circulation pump and the air source heat pump unit to connect to the hot water supply.

[0011] Furthermore, a fourth valve is provided in the connecting pipeline between the hot water circulation pump and the second valve.

[0012] Furthermore, the hot water circulation pump is connected to the air source heat pump unit, and the hot water return water can flow out through the hot water circulation pump and the air source heat pump unit to connect to the hot water supply.

[0013] Furthermore, a fourth valve is provided in the connecting pipeline between the hot water circulation pump and the air source heat pump unit.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The air source heat pump device provided by the utility model, through the hot water circulation pump, air heat exchanger and air source heat pump unit connected in series in sequence, allows the hot water return water to be preheated by the air heat exchanger, and then further heated by the air source heat pump unit, using low-grade air heat energy to increase the inlet water temperature of the air source heat pump unit, reduce operating energy consumption, and at the same time ensure the heating capacity of the device in the case of insufficient air heat energy, and improve the heating quality. By opening or closing the valve on the connecting pipeline, it is also possible to directly extract air energy and then supply heat, maximize energy conservation, and achieve deep recycling of low-grade air heat energy; and it is also possible to realize the air source heat pump unit to operate independently for heating, ensuring the heating reliability of the device under extreme working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of an air source heat pump device provided in an embodiment of the utility model;

[0017] In the figure: 1-hot water circulation pump, 2-first valve, 3-air heat exchanger, 4-air source heat pump unit, 5-second valve, 6-third valve, 7-fourth valve. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is described in detail below through the accompanying drawings and specific embodiments. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. The embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present 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, and therefore cannot be understood as a limitation on the present utility model. In addition, the term "and / or" herein is merely a description of an associated relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may indicate three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " herein generally indicates that the front and back associated objects are in an "or" relationship.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] like Figure 1 As shown, an embodiment of the utility model provides an air source heat pump device, including: a hot water circulation pump 1, an air heat exchanger 3, an air source heat pump unit 4 and connecting pipes between the various components. The air source heat pump device is connected to hot water return water and outputs hot water supply.

[0022] The hot water return pipe, the hot water circulation pump 1, the air heat exchanger 3, the air source heat pump unit 4 and the hot water supply pipe are connected in series in sequence, so that the hot water return can flow out through the hot water circulation pump 1, the air heat exchanger 3 and the air source heat pump unit 4 to connect to the hot water supply. Among them, a first valve 2 is provided on the connecting pipe between the hot water circulation pump 1 and the air heat exchanger 3, and a second valve 5 is provided on the connecting pipe between the air heat exchanger 3 and the air source heat pump unit 4.

[0023] A connecting pipeline is provided between the air heat exchanger 3 and the hot water supply, so that the hot water return water can flow out through the hot water circulation pump 1 and the air heat exchanger 3 to connect to the hot water supply, wherein a third valve 6 is provided on the connecting pipeline between the air heat exchanger 3 and the hot water supply.

[0024] A connecting pipeline is arranged between the hot water circulation pump 1 and the second valve 5, or a connecting pipeline is arranged between the hot water circulation pump 1 and the air source heat pump unit 4, so that the hot water return water can flow out through the hot water circulation pump 1 and the air source heat pump unit 4 to connect to the hot water supply, wherein a fourth valve 7 is arranged on the connecting pipeline between the hot water circulation pump 1 and the second valve 5, or a fourth valve 7 is arranged on the connecting pipeline between the hot water circulation pump 1 and the air source heat pump unit 4.

[0025] The air source heat pump device in the embodiment of the utility model is suitable for being arranged in a scene with a high ambient air temperature. When the hot water supply temperature demand is not high, the first valve 2 and the third valve 6 are opened, and the second valve 5 and the fourth valve 7 are closed. The hot water return water can flow out through the hot water circulation pump 1 and the air heat exchanger 3 to connect to the hot water supply. The air heat exchanger 3 is used to directly extract air energy and then provide heat, making full use of low-grade air thermal energy, and achieving significant energy-saving and consumption-reducing effects.

[0026] When the ambient air temperature is between the hot water supply temperature and the return water temperature, the first valve 2 and the second valve 5 are opened, and the third valve 6 and the fourth valve 7 are closed, so that the hot water return water can flow out through the hot water circulation pump 1, the air heat exchanger 3 and the air source heat pump unit 4 in sequence to connect to the hot water supply, thereby realizing the series heating operation of the air source heat pump unit 4. The hot water return water is preheated by the air heat exchanger 3 and then further heated by the air source heat pump unit 4 to increase the inlet water temperature of the air source heat pump unit 4, and reduce the operating energy consumption of the air source heat pump unit 4 by utilizing low-grade air heat energy. The air source heat pump unit 4 is used to ensure the heating capacity in the case of insufficient air heat energy, thereby improving the heating quality of the air source heat pump device in the embodiment of the utility model.

[0027] When there is no low-grade waste heat available, open the second valve 5 and the fourth valve 7, close the first valve 2 and the third valve 6, and the hot water return water can flow out through the hot water circulation pump 1 and the air source heat pump unit 4 to connect to the hot water supply, so that the air source heat pump unit 4 can operate independently for heating, thereby improving the heating reliability of the air source heat pump device in the embodiment of the utility model.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present disclosure / application.

Claims

1. An air source heat pump device, characterized in that: include: A hot water circulation pump (1), an air heat exchanger (3), an air source heat pump unit (4) and a hot water circulation pump (1), wherein the device is connected to hot water return water and outputs hot water supply water; The hot water circulation pump (1), the air heat exchanger (3) and the air source heat pump unit (4) are sequentially connected in series via connecting pipes, and the hot water return water can flow out through the hot water circulation pump (1), the air heat exchanger (3) and the air source heat pump unit (4) to connect to the hot water supply; The connecting pipeline between the hot water circulation pump (1) and the air heat exchanger (3) is provided with a first valve (2), and the connecting pipeline between the air heat exchanger (3) and the air source heat pump unit (4) is provided with a second valve (5); The air heat exchanger (3) is connected to the hot water supply, and the hot water return water can flow out through the hot water circulation pump (1) and the air heat exchanger (3) to connect to the hot water supply; The connecting pipeline between the air heat exchanger (3) and the hot water supply is provided with a third valve (6).

2. The air source heat pump device according to claim 1, characterized in that: The hot water circulation pump (1) is connected to the second valve (5), and the hot water return water can flow out through the hot water circulation pump (1) and the air source heat pump unit (4) to connect to the hot water supply.

3. The air source heat pump device according to claim 2, characterized in that: The connecting pipeline between the hot water circulation pump (1) and the second valve (5) is provided with a fourth valve (7).

4. The air source heat pump device according to claim 1, characterized in that: The hot water circulation pump (1) is connected to the air source heat pump unit (4), and the hot water return water can flow out through the hot water circulation pump (1) and the air source heat pump unit (4) to connect to the hot water supply.

5. The air source heat pump device according to claim 4, characterized in that: The connecting pipeline between the hot water circulation pump (1) and the air source heat pump unit (4) is provided with a fourth valve (7).

Images