Indoor backwater heat supply enhancing machine applied to central heating

Abstract

An indoor water return heat supply enhancing machine applied to centralized heating comprises a water supply pipeline, a water return pipeline, a heating tail end and a water source heat pump heating unit, the heating tail end comprises a water collecting and distributing device and at least one sub heating tail end, and the water supply pipeline and the water return pipeline are communicated with the water inlet end and the water return end of the heating tail end respectively. A water heat exchanger part of the water side heat exchanger is connected in series or in parallel to a pipeline at the water return end of the heating tail end; or the heating tail end comprises a plurality of sub-heating tail ends, the sub-heating tail ends are communicated with the water supply pipeline and the water return pipeline respectively, the water heat exchanger part is connected to the water return pipeline in series or in parallel, and one sub-heating tail end and one water source heat pump heating unit form one group. A water return pipeline at the heating tail end of the water collection heating system is communicated with a water source heat exchanger of the water source heat pump heating unit, and when the indoor temperature is reduced, or the system pressure is low and circulation is slow, the water source heat pump heating unit works to absorb heat energy of return water in the water return pipeline to be used as supplement for indoor temperature rise or temperature keeping.

Description

Technical Field

[0001] The invention relates to a heating enhancement system for a centrally heated residence, a conference room or an office, a shop or a workshop. Background Art

[0002] At present, the existing technology uses a centralized water supply heating system and indoor heat exchangers (such as fan coil units, floor heating, and radiators) for heating buildings. The centralized water supply heating covers a large area and is affected by the floor, water supply pressure, hydraulic balance, and size of the indoor heat exchanger. Some indoor spaces heat up slowly or are too cold, which makes users dissatisfied. Utility Model Content

[0003] The purpose of the present invention is to provide an indoor return water heating enhancement machine for central heating, which has the characteristics of utilizing the return water waste heat of central heating as a heat source to heat the room.

[0004] The invention is realized in this way: an indoor return water heating enhancement machine used for central heating, which is special in that it includes a water supply pipeline, a return water pipeline, a heating terminal and a water source heat pump heating unit,

[0005] The water source heat pump heating unit includes a casing, a compressor, a condenser, a fan and a water-side heat exchanger. The casing is provided with an air inlet and an air outlet group, and the air outlet group is connected to the air outlet of the fan;

[0006] The heating terminal includes a manifold and at least one sub-heating terminal, the water supply pipeline and the return pipeline are respectively connected to the water inlet and return ends of the heating terminal, and the water heat exchanger part of the water side heat exchanger is connected in series or in parallel to the pipeline of the return end of the heating terminal;

[0007] Or the water heat exchanger part of the water side heat exchanger is connected in series or in parallel to the return pipe at the end of the sub-heating;

[0008] Or the heating terminal includes several sub-heating terminals, which are respectively connected to the water supply pipeline and the return pipeline. The water heat exchanger is connected in series or in parallel to the return pipeline. One sub-heating terminal and one water source heat pump heating unit are grouped together.

[0009] The indoor return water heating enhancement machine used for central heating is special in that when the water heat exchanger part of the water side heat exchanger and the return water pipeline are connected in parallel, a one-way valve is provided at the water outlet of the water heat exchanger part.

[0010] The indoor return water heating enhancement machine used for centralized heating is characterized in that a water flow regulating valve is provided on the return water pipeline between the water inlet and the water outlet of the water heat exchanger part of the water side heat exchanger.

[0011] The indoor return water heating enhancement machine used for central heating is special in that it also includes a room temperature sensor and a return water temperature sensor, and the return water temperature sensor is arranged on the pipeline at the water inlet end of the water heat exchanger;

[0012] When the room temperature sensor detects the room temperature T A When the room temperature sensor detects the room temperature T A Greater than the set temperature T S At +2℃, the water source heat pump heating unit shuts down;

[0013] When the return water temperature sensor on the return water pipe detects that the return water temperature returning to the municipal heating network is lower than 12°C, the water source heat pump heating unit automatically shuts down.

[0014] The indoor water return heating enhancement machine used for central heating is special in that: the housing has a front opening and is in a quadrangular pyramid shape, and a ring-shaped seat plate is provided at the rear end;

[0015] The panel includes a glass plate body, an annular frame and an annular air inlet seat.

[0016] The frame edge of the annular frame has a frame cavity with a rear opening, and a buckle hook is arranged on the inner wall plate of the frame cavity;

[0017] The annular air inlet seat comprises a fixing plate, an annular protrusion arranged on the fixing plate, a buckle hook and an annular fixing seat, and a plurality of air inlet holes are arranged on the outer circumferential surface of the annular fixing seat;

[0018] The glass plate body is fitted and fixed to the fixing plate, the annular frame surrounds the glass plate body, the annular protrusion is embedded in the frame cavity, and the buckle hook and the buckle hook hole are buckled; the annular fixing seat is fitted to the annular seat plate, and the screw passes through the annular seat plate and fits the annular fixing seat; the gap between the outer circumferential surface of the annular fixing seat and the front opening constitutes the air inlet.

[0019] The indoor return water heating enhancement machine used for centralized heating is special in that it also includes a sound insulation and noise reduction shell, which is arranged on the bottom plate of the shell, the compressor and the water side heat exchanger are arranged in the sound insulation and noise reduction shell, the water inlet interface and the water outlet interface of the water heat exchanger part extend out from the sound insulation and noise reduction shell, and a functional hole is provided on the back plate of the shell, which corresponds to the water inlet interface and the water outlet interface.

[0020] The indoor return water heating enhancement machine used for centralized heating has the following features: it also includes a joint shell with a rear opening, and a water inlet pipe hole and a water outlet pipe hole are arranged on the top plate of the joint shell;

[0021] The joint shell is fixed to the rear back plate and the rear opening is opposite to the functional hole.

[0022] The indoor return water heating enhancement machine used for central heating is special in that it also includes a water pressure gauge, a water filter, a water pump and an expansion tank.

[0023] The water pressure gauge, water filter and water pump are installed on the water supply pipeline, and the expansion tank is installed on the return pipeline.

[0024] The indoor return water heating enhancement machine used for central heating is special in that the water source pump heating unit is placed on the ground or hung on the wall.

[0025] The present invention is a new indoor return water heating enhancement machine used in central heating. Due to the adoption of such a structure, the return water pipeline at the heating end of the central water supply heating system is connected with the water source heat exchanger of the water source heat pump heating unit. When the outdoor temperature drops, the system pressure is low, the circulation is slow, the water supply is unbalanced or the water supply temperature is too low, causing the indoor temperature to fail to meet the heating standard or user demand, the water source heat pump heating unit will work to absorb the return water heat energy in the return water pipe and use it for indoor heating or temperature maintenance as a supplement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a new system diagram of this invention.

[0027] Figure 2 It is one of the new stereograms of this work.

[0028] Figure 3 This is the second of Benshi's new three-dimensional diagrams.

[0029] Figure 4 This is a new cross-sectional view of the present invention.

[0030] Figure 5 This is one of our new three-dimensional exploded views.

[0031] Figure 6 This is the second of the three-dimensional exploded diagrams of this work.

[0032] Figure 7 This is the third of the three-dimensional exploded views of this paper.

[0033] Figure 8 This is a three-dimensional exploded view of the new panel.

[0034] Fig. 9 This is one of the layout structure diagrams of the new heating terminal.

[0035] Fig.10 This is the second of the layout structure diagrams of the new heating terminal.

[0036] Fig.11 This is the third of the layout structure diagrams of the new heating terminal. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] 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 a direct connection, or 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 according to specific circumstances.

[0039] like Figure 1 , Figure 4 , Figure 5 As shown, an indoor return water heating enhancement machine for central heating includes a water supply pipeline 1, a return water pipeline 2, a heating terminal 3 and a water source heat pump heating unit 4.

[0040] The water source heat pump heating unit 4 includes a casing 41, a panel 42, a compressor 43, a condenser 44, a fan 45 and a water side heat exchanger 46. The front opening of the casing 41 and the panel 42 form a circular air inlet. An air outlet group 411 is provided on the top plate of the casing 41. The air outlet group 411 is connected to the air outlet of the fan 45. The air inlet of the fan 45 is opposite to the condenser. The basic structure of the water source heat pump heating unit 4 is a known technology, and the present invention can only describe the relevant part.

[0041] The water heat exchanger part of the water side heat exchanger 46 is connected in series or in parallel to the return water pipeline 2;

[0042] like Figure 1 , Fig. 9 As shown, the heating terminal 3 includes a manifold 31 and a plurality of sub-heating terminals 32. The sub-heating terminals 32 are pipelines, fin heat sinks or fan coil devices pre-buried in the base plate; the water inlet and outlet of the sub-heating terminal 32 are connected to the water supply pipeline 1 and the return water pipeline 2 respectively; the water side heat exchanger 46 is connected in series or in parallel with the return water pipeline 2 connected to the manifold 31;

[0043] With such a structure, when the circulation capacity of the central heating and indoor heating terminals 3 is poor, or the external ambient temperature is low, resulting in low indoor temperature, the water source pump heating unit 4 works, and the water heat exchanger part of the water side heat exchanger 46 absorbs the heat energy of the water in the return pipe, providing a heat source for the refrigerant heat exchange part of the water side heat exchanger 46, namely the evaporator; the indoor air enters through the annular air inlet, is heated by the condenser, and is discharged into the room through the fan 45, thereby increasing the indoor temperature; it also accelerates the indoor air flow and makes the indoor temperature uniform.

[0044] As a further improvement of the present invention: when the water heat exchanger part of the water side heat exchanger and the return water pipeline are connected in parallel, a one-way valve 461 is provided at the water outlet of the water heat exchanger part 46 to prevent water backflow.

[0045] As a further improvement of the present invention: a water flow regulating valve 462 is provided on the return water pipeline 2 between the water inlet and the water outlet of the water side heat exchanger 46;

[0046] like Fig.10 As shown, there are several water source pump heating units 4, the heating terminal 3 includes several sub-heating terminals 32, the water heat exchanger part of the water source pump heating unit 4 is connected in series or in parallel with the return water pipeline 2; the sub-heating terminal 32 is connected with the water supply pipeline 1 and the return water pipeline 2;

[0047] The water source pump heating unit 4 and the sub-heating terminal 32 are arranged according to the number of bedrooms, dining rooms and living rooms in the building; the sub-heating terminal 32 may also be arranged separately.

[0048] As a further improvement of this invention: Fig.11 As shown, the heating terminal 3 includes a manifold 31 and a plurality of floor heating branch pipes 32.

[0049] The manifold 31 includes a water supply pipe body 311 , a plurality of water supply branches arranged on the water supply pipe body 311 , a water return pipe body 312 , and a plurality of water return branches arranged on the water return pipe body 312 .

[0050] The water inlet end of the floor heating branch pipe 32 is connected to the water supply branch pipe, and the water outlet end is connected to the return branch pipe. The water heat exchanger part 46 is connected in series or in parallel with the water outlet end of the floor heating branch pipe 32.

[0051] The heating terminal can also be a finned heat exchanger or a fan coil structure.

[0052] As a further improvement of the present invention, it also includes a room temperature sensor and a return water temperature sensor, and the return water temperature sensor is arranged on the pipeline at the water inlet end of the water heat exchanger;

[0053] When the room temperature sensor detects the room temperature T A When the room temperature sensor detects the room temperature TA Greater than the set temperature T S When the temperature is +2℃, the water source pump heating unit 4 is stopped and the fan 45 is turned on; the fan 45 rotates to promote indoor air flow. The fan 45 may also not rotate.

[0054] When the return water temperature sensor on the return water pipeline of the heating enhancement system detects that the return water temperature returning to the municipal heating network is lower than 12°C, the water source pump heating unit 4 automatically shuts down.

[0055] As a further improvement of the present invention: the front opening of the housing 41 is in the shape of a quadrangular pyramid, and a ring-shaped seat plate 412 is provided at the rear end;

[0056] The panel 42 includes a glass plate body 421, an annular frame 422 and an annular air inlet seat 423.

[0057] The frame edge of the annular frame 422 has a frame cavity 4221 with a rear opening, and a buckle hook 4221 is provided on the inner wall plate of the frame cavity;

[0058] The annular air inlet seat 423 includes a fixing plate 4231, an annular protrusion 4232 provided on the front surface of the fixing plate 4231, a hook hole 4233 and an annular fixing seat 4234. A plurality of air inlet holes are provided on the outer circumferential surface of the annular fixing seat 4234.

[0059] The glass plate body 421 is fitted and fixed to the fixing plate 4231, the annular frame 422 surrounds the glass plate body 421, the annular protrusion 4232 is embedded in the frame cavity, the hook 4221 and the hook hole 4233 are fitted; the annular fixing seat 4234 is fitted to the annular seat plate 412, and the screw passes through the annular seat plate 412 and fits the annular fixing seat 4234; the gap between the outer circumferential surface of the annular fixing seat 4234 and the front opening constitutes an air inlet and is annular. The annular frame wraps the outer circumferential surface of the glass plate body to prevent the edge of the glass plate body from causing harm to people.

[0060] As a further improvement of the present invention, it also includes a sound insulation and noise reduction shell 5, which is arranged on the bottom plate of the casing 41, the compressor 43 and the water side heat exchanger 46 are arranged in the sound insulation and noise reduction shell 5, and the water inlet interface and the water outlet interface of the water heat exchanger part of the water side heat exchanger 46 extend out from the sound insulation and noise reduction shell 5, and a functional hole 4141 is provided on the back plate 414 of the casing 41, and the functional hole 4141 corresponds to the water inlet interface and the water outlet interface.

[0061] As a further improvement of the present invention, it also includes a joint shell 6 with a rear opening, and a water inlet pipe hole and a water outlet pipe hole are provided on the top plate of the joint shell 6;

[0062] The connector shell 6 is fixed to the rear back plate 414 with its rear opening facing the functional hole 4141 .

[0063] As a further improvement of the present invention, it also includes a water pressure gauge 71, a water filter 72, a water pump 73 and an expansion tank 74.

[0064] The water pressure gauge 71 , the water filter 72 , and the water pump 73 are arranged on the water supply pipeline 1 , and the expansion tank 74 is arranged on the water return pipeline 2 .

[0065] When the present invention is used, the water source pump heating unit 4 is placed on the ground or hung on the wall.

[0066] Although embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An indoor return water heating enhancement machine for central heating, characterized in that: Including water supply pipeline, return pipeline, heating terminal and water source heat pump heating unit, The water source heat pump heating unit includes a casing, a compressor, a condenser, a fan and a water-side heat exchanger. The casing is provided with an air inlet and an air outlet group, and the air outlet group is connected to the air outlet of the fan; The heating terminal includes a manifold and at least one sub-heating terminal, the water supply pipeline and the return pipeline are respectively connected to the water inlet and return ends of the heating terminal, and the water heat exchanger part of the water side heat exchanger is connected in series or in parallel to the pipeline of the return end of the heating terminal; Or the water heat exchanger part of the water side heat exchanger is connected in series or in parallel to the return pipe at the end of the sub-heating; Or the heating terminal includes several sub-heating terminals, which are respectively connected to the water supply pipeline and the return pipeline. The water heat exchanger is connected in series or in parallel to the return pipeline. One sub-heating terminal and one water source heat pump heating unit are grouped together.

2. The indoor return water heating enhancement machine for central heating according to claim 1, characterized in that: When the water heat exchanger part of the water side heat exchanger and the return water pipeline are connected in parallel, a one-way valve is provided at the water outlet end of the water heat exchanger part.

3. The indoor return water heating enhancement machine for central heating according to claim 2, characterized in that: A water flow regulating valve is provided on the return water pipeline between the water inlet end and the water outlet end of the water heat exchanger part of the water side heat exchanger.

4. An indoor return water heating enhancement machine for central heating according to claim 1, 2 or 3, characterized in that: It also includes a room temperature sensor and a return water temperature sensor, wherein the return water temperature sensor is arranged on the pipeline at the water inlet end of the water heat exchanger; When the room temperature sensor detects the room temperature T A When the room temperature sensor detects the room temperature T A Greater than the set temperature T S At +2℃, the water source heat pump heating unit shuts down; When the return water temperature sensor on the return water pipe detects that the return water temperature returning to the municipal heating network is lower than 12°C, the water source heat pump heating unit automatically shuts down.

5. According to claim 1, an indoor return water heating enhancement machine for central heating is characterized in that: The housing has a front opening in the shape of a quadrangular pyramid and a rear end provided with an annular seat plate; It also includes a panel, and the panel includes a glass plate body, an annular frame and an annular air inlet seat, The frame edge of the annular frame has a frame cavity with a rear opening, and a buckle hook is arranged on the inner wall plate of the frame cavity; The annular air inlet seat comprises a fixing plate, an annular protrusion arranged on the fixing plate, a buckle hook and an annular fixing seat, and a plurality of air inlet holes are arranged on the outer circumferential surface of the annular fixing seat; The glass plate body is fitted and fixed to the fixing plate, the annular frame surrounds the glass plate body, the annular protrusion is embedded in the frame cavity, and the buckle hook and the buckle hook hole are buckled; the annular fixing seat is fitted to the annular seat plate, and the screw passes through the annular seat plate and fits the annular fixing seat; the gap between the outer circumferential surface of the annular fixing seat and the front opening constitutes the air inlet.

6. According to claim 5, an indoor return water heating enhancement machine for central heating is characterized in that: It also includes a sound insulation and noise reduction shell, which is arranged on the bottom plate of the casing, the compressor and the water side heat exchanger are arranged in the sound insulation and noise reduction shell, the water inlet interface and the water outlet interface of the water heat exchanger part extend out of the sound insulation and noise reduction shell, and a functional hole is arranged on the back plate of the shell, and the functional hole corresponds to the water inlet interface and the water outlet interface.

7. According to claim 6, an indoor return water heating enhancement machine for central heating, characterized in that: It also includes a joint shell with a rear opening, and a water inlet pipe hole and a water outlet pipe hole are arranged on the top plate of the joint shell; The joint shell is fixed to the rear back plate and the rear opening is opposite to the functional hole.

8. An indoor return water heating enhancement machine for central heating according to claim 1, 2, 3, 5, 6 or 7, characterized in that: The water source pump heating unit is placed on the ground or hung on the wall.

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