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] The present invention relates to a household central heating system. Background Art

[0002] In the current prior art, Chinese Patent No. 202410794845.6, an indoor return water heating enhancer for central heating, 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 collector-distributor and at least one sub-heating terminal. The water supply pipeline and the return water pipeline are respectively connected to the water inlet end and the water return end of the heating terminal. The water heat exchanger part of the water side heat exchanger is connected in series or in parallel on the pipeline at the water return end of the heating terminal; or the heating terminal includes a number of sub-heating terminals, and the sub-heating terminals are respectively connected to the water supply pipeline and the return water pipeline, and the water heat exchanger part is connected in series or in parallel on the return water pipeline. One sub-heating terminal and one water source heat pump heating unit form a group. The return water pipeline of the heating terminal of the centralized water 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 the circulation is slow, causing the indoor temperature to drop, the water source heat pump heating unit works to absorb the heat energy of the return water in the return water pipeline for indoor heating or maintaining the temperature as a supplement. The problem is that the water source heat pump system and the centralized heating system are not coupled together. Summary of the Invention

[0003] The object of the present invention is to provide a household central heating and water source heat pump composite device, which has the characteristics of coupling the centralized heating system and the water source heat pump together and cooperating with each other.

[0004] The present invention is realized as follows: A household central heating and water source heat pump composite device, characterized in that it includes a heating water supply pipe, a heating return water pipe, a water source heat pump system, and a heating terminal.

[0005] The water source heat pump system includes a compressor, a first double-flow heat exchanger, a second double-flow heat exchanger, and an electronic expansion valve. The first double-flow heat exchanger includes a first water circuit and a first refrigerant flow path as a condenser. The second double-flow heat exchanger includes a second water circuit and a second refrigerant flow path 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 described household central heating and water source heat pump composite device is characterized in that during operation, (1) 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;

[0008] (2) the water source heat pump system works; 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 the water flows;

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

[0010] A household central heating and water source heat pump composite device of the present invention, with the setting of the first double-flow heat exchanger and the second double-flow heat exchanger, couples and coordinates the central heating system and the water source heat pump system, and the central heating system can work independently; fully utilizes the return water temperature, saves energy in the water source heat pump system, and also increases the indoor temperature. Description of the Drawings

[0011] Figure 1 is the front view of the present invention. Detailed Embodiments

[0012] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0013] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 the present invention can be understood according to specific circumstances.

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

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

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

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

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

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

[0020] When the water temperature of the central heating system is low, the indoor temperature is low, or in case of extremely cold weather; or during temporary maintenance of the central heating system, the water source heat pump system 3 operates. When operating, it absorbs the heat energy of the return water in the central heating system, reducing the energy consumption of the water source heat pump system 3 and the usage cost;

[0021] For consumers, it is convenient for construction and installation, only the heating system and the heating terminal need to be installed; it is small in size and occupies little indoor space.

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

Claims

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

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

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