Household central heating and water source heat pump composite device

Abstract

A household central heating and water source heat pump composite device comprises a heating water supply pipe, a heating water return pipe, a water source heat pump system and a heating tail end, and the water source heat pump system comprises a compressor, a first double-flow-channel heat exchanger, a second double-flow-channel heat exchanger and an electronic expansion valve. The first double-flow-channel heat exchanger comprises a first water path and a first refrigerant flow path serving as a condenser, and the second double-flow-channel heat exchanger comprises a second water path and a second refrigerant flow path serving as an evaporator; due to the arrangement of the first double-flow-channel heat exchanger and the second double-flow-channel heat exchanger, the central heating system and the water source heat pump system are coupled together and cooperate with each other, and the central heating system can work independently; return water temperature is fully utilized, a water source heat pump system is energy-saving, and indoor temperature can be increased.

Description

Technical Field

[0001] This new technology involves residential central heating systems. Background Technology

[0002] The existing technology, Chinese patent 202410794845.6, describes an indoor return water heating enhancement machine for centralized heating, which includes a water supply pipeline, a return water pipeline, a heating terminal, and a water source heat pump heating unit. The heating terminal includes a manifold and at least one sub-heating terminal. The water supply pipeline and the return water pipeline are respectively connected to the inlet and return water ends of the heating terminal. The water heat exchanger section of the water-side heat exchanger is connected in series or parallel to the pipeline at the return water end of the heating terminal; or the heating terminal includes several sub-heating terminals, which are respectively connected to the water supply pipeline and the return water pipeline. The water heat exchanger section is connected in series or parallel to the return water pipeline. One sub-heating terminal and one water source heat pump heating unit constitute a group. The return water pipe at the heating terminal of the centralized heating system is connected to the water source heat exchanger of the water source heat pump heating unit. When the indoor temperature drops, or the system pressure is low and circulation is slow, causing a drop in indoor temperature, the water source heat pump heating unit operates, absorbing the heat energy from the return water in the return pipe to supplement the indoor temperature by either raising or maintaining it. The problem is that the water source heat pump system and the centralized heating system are not coupled together. Utility Model Content

[0003] The purpose of this invention is to provide a combined household central heating and water source heat pump device, which features the central heating system and the water source heat pump coupled together and working in synergy.

[0004] This invention achieves its purpose as follows: a combined household central heating and water source heat pump device, characterized by comprising a heating supply pipe, a heating return pipe, a water source heat pump system, and heating terminals.

[0005] The water source heat pump system includes a compressor, a first dual-channel heat exchanger, a second dual-channel heat exchanger, and an electronic expansion valve. The first dual-channel heat exchanger includes a first water path and a first refrigerant path that serves as a condenser. The second dual-channel heat exchanger includes a second water path and a second refrigerant path that serves as an evaporator.

[0006] The heating water supply pipe, the first water circuit, the heating terminal, the second water circuit, and the heating return water pipe are connected in sequence.

[0007] The aforementioned household centralized heating and water source heat pump composite device is characterized in that: during operation, (i) the water source heat pump system stops working; the heating water supply pipe, the first water circuit, the heating terminal, the second water circuit, and the heating return water pipe are sequentially connected to circulate heating;

[0008] (ii) The water source heat pump system is in operation; the heating water supply pipe, the first water circuit, the heating terminal, the second water circuit, and the heating return water pipe are connected in sequence and water flows;

[0009] The first refrigerant flow path heats the water in the first water path, while the second refrigerant flow path absorbs the heat energy from the second water path.

[0010] This invention discloses a novel integrated household central heating and water source heat pump device. The configuration of the first dual-channel heat exchanger and the second dual-channel heat exchanger couples and coordinates the central heating system and the water source heat pump system, allowing the central heating system to operate independently. It fully utilizes the return water temperature, the water source heat pump system saves energy, and also increases the indoor temperature. Attached Figure Description

[0011] Figure 1 This is the new main view. Detailed Implementation

[0012] The embodiments of this invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this invention, and should not be construed as limiting this invention.

[0013] In the description of this new invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this new invention based on the specific circumstances.

[0014] like Figure 1 As shown, a combined household central heating and water source heat pump device includes a heating supply pipe 1, a heating return pipe 2, a water source heat pump system 3, and heating terminals 4.

[0015] The water source heat pump system 3 includes a compressor 31, a first dual-channel heat exchanger 32, a second dual-channel heat exchanger 33, and an electronic expansion valve 34. The first dual-channel heat exchanger 32 includes a first water path and a first refrigerant path that serves as a condenser. The second dual-channel heat exchanger 33 includes a second water path and a second refrigerant path that serves as an evaporator.

[0016] The heating water supply pipe 1, the first water circuit of the first dual-channel heat exchanger 32, the heating terminal 4, the second water circuit of the second dual-channel heat exchanger 33, and the heating return water pipe 2 are connected in sequence.

[0017] During operation, (a) the water source heat pump system 3 stops working; the heating water supply pipe 1, the first water circuit of the first dual-channel heat exchanger 32, the heating terminal 4, the second water circuit of the second dual-channel heat exchanger 33 and the heating return water pipe 2 are connected in sequence for circulating heating; when using a centralized heating system, the water source heat pump system does not need to work.

[0018] (ii) The water source heat pump system 3 is working; the heating water supply pipe 1, the first double-channel heat exchanger 32, the second water circuit of the heating terminal 4, the second double-channel heat exchanger 33, and the heating return pipe 2 are connected in sequence and hot water flows for heating.

[0019] The first refrigerant flow path of the first dual-channel heat exchanger 32 heats the water in the first water path of the first dual-channel heat exchanger 32, while the second refrigerant flow path absorbs the heat energy of the second water path.

[0020] When the water temperature in the centralized heating system is low, the indoor temperature is low, or there is extreme cold weather; or when the water-collecting heating system is temporarily under maintenance, the water source heat pump system 3 will work. When it is working, it will absorb the heat energy of the return water in the centralized heating system, thereby reducing the energy consumption of the water source heat pump system 3 and reducing the operating cost.

[0021] For consumers, construction and installation are convenient, requiring only the installation of the heating system and heating terminal; it is also small in size and occupies little indoor space.

[0022] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A combined household central heating and water source heat pump device, characterized in that: This includes heating water supply pipes, heating return pipes, water source heat pump systems, and heating terminals. The water source heat pump system includes a compressor, a first dual-channel heat exchanger, a second dual-channel heat exchanger, and an electronic expansion valve. The first dual-channel heat exchanger includes a first water path and a first refrigerant path that serves as a condenser. The second dual-channel heat exchanger includes a second water path and a second refrigerant path that serves as an evaporator. The heating water supply pipe, the first water circuit, the heating terminal, the second water circuit, and the heating return water pipe are connected in sequence.

2. The combined household central heating and water source heat pump device according to claim 1, characterized in that: During operation, (i) the water source heat pump system stops working; the heating water supply pipe, the first water circuit, the heating terminal, the second water circuit and the heating return water pipe are connected in sequence for circulating heating; (ii) The water source heat pump system is in operation; the heating water supply pipe, the first water circuit, the heating terminal, the second water circuit, and the heating return water pipe are connected in sequence and water flows; The first refrigerant flow path heats the water in the first water path, while the second refrigerant flow path absorbs the heat energy from the second water path.

Images