Energy recovery type heat pump
By designing an energy recovery heat pump, the flow of flue gas drives the rotation of the generator fan blades to provide electricity for the heat pump. Combined with a phase change energy storage module for energy recovery and storage, the problem that existing heat pumps cannot use flue gas to generate electricity is solved, and the efficient use of energy is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-24
AI Technical Summary
Existing heat pumps cannot utilize flue gas to generate electricity during operation, resulting in insufficient energy utilization.
Design an energy recovery type heat pump that uses the flow of flue gas to drive the rotation of the generator fan blades, uses a fan blade-type generator module to provide power to the heat pump, and combines it with a phase change energy storage module for energy recovery and storage.
It enables power generation and energy supply through flue gas flow, saving energy and realizing the reuse and storage of energy.
Smart Images
Figure CN224034053U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of energy engineering and heat energy utilization, especially relates to a energy recovery type heat pump. BACKGROUND
[0002] The heat pump is an energy conversion device based on thermodynamic principle, and its core function is to transfer and promote the low-grade heat energy (such as the heat in air, water and soil) in the environment into usable high-grade heat energy by a small amount of high-grade energy (such as electric energy) as driving, the existing heat pump is usually composed of compressor, indoor heat exchanger, outdoor heat exchanger, reversing valve, check valve, expansion valve and pipeline, but the current heat pump usually transfers and utilizes the heat in air, cannot utilize flue gas to generate power for the heat pump in the process of use, and is relatively inconvenient.
[0003] Therefore, it is necessary to design a energy recovery type heat pump which can generate power by the flow of flue gas, facilitate energy recovery and recycling, and save energy. CONTENT OF UTILITY MODEL
[0004] In order to overcome the shortcomings that the current heat pump usually transfers and utilizes the heat in air, cannot utilize flue gas to generate power for the heat pump in the process of use, the utility model provides a energy recovery type heat pump which can generate power by the flow of flue gas, facilitate energy recovery and recycling, and save energy.
[0005] The technical scheme is as follows: a energy recovery type heat pump, comprising a compressor, a discharge pipeline, a communication pipeline, a backflow pipeline, a reversing valve, a heat exchange assembly and an energy storage assembly, the discharge pipeline is connected to the lower right side of the compressor, the backflow pipeline is connected to the lower right side of the compressor, the backflow pipeline is located above the discharge pipeline, the reversing valve is connected between the right side of the discharge pipeline and the backflow pipeline, the communication pipeline is connected to the lower right side of the reversing valve, the heat exchange assembly capable of heat exchanging with air is arranged on the communication pipeline, and the energy storage assembly capable of generating power by flue gas is arranged on the heat exchange assembly.
[0006] As an improvement of the above scheme, the heat exchange assembly comprises an indoor heat exchanger, a branch pipe, a check valve, an expansion valve, a sight glass, a bidirectional drying filter, an outdoor heat exchanger, a first connecting pipeline and a second connecting pipeline, the indoor heat exchanger is connected to the right side of the communication pipeline, the first connecting pipeline is connected to the right side of the indoor heat exchanger, the second connecting pipeline is connected to the reversing valve, the outdoor heat exchanger is connected to the left rear part of the second connecting pipeline, the first connecting pipeline is also connected to the rear side of the outdoor heat exchanger, the branch pipe is connected to the lower side of the first connecting pipeline, the check valve is installed in the middle part of the branch pipe, the expansion valve is installed in the middle part of the first connecting pipeline, the first connecting pipeline is connected to the left part of the indoor heat exchanger, and the bidirectional drying filter is connected between the first connecting pipelines.
[0007] As the improvement of the above scheme, the branch pipes are all U-shaped structures.
[0008] As the improvement of the above scheme, the energy storage assembly further comprises an air inlet pipe, a fan blade type power generation module, a power generation fan blade and a phase change energy storage module, the air inlet pipe is connected to the upper side of the outdoor heat exchanger, the fan blade type power generation module is arranged in the air inlet pipe, the power generation fan blade is rotatably connected to the upper portion of the air inlet pipe, and the phase change energy storage module is connected to the outdoor heat exchanger and the indoor heat exchanger.
[0009] As the improvement of the above scheme, the air inlet pipe is provided with a filter screen.
[0010] As the improvement of the above scheme, the phase change energy storage module is a paraffin-based phase change energy storage material.
[0011] Beneficial effects: the smoke enters the air inlet pipe, drives the power generation fan blade to rotate, the fan blades in the fan blade type power generation module also rotate, the power generation fan blade and the fan blade type power generation module provide electric energy for the heat pump, the flow of the smoke can be used to generate electricity, energy can be recycled and reused, and the effect of saving energy is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a three-dimensional structure schematic view of the utility model.
[0013] Figure 2 It is a three-dimensional structure schematic view of the utility model branch pipe and check valve and other components.
[0014] Figure 3 It is a three-dimensional structure schematic view of the utility model discharge pipeline and backflow pipeline and other components.
[0015] Figure 4 It is a sectional three-dimensional structure schematic view of the utility model fan blade type power generation module and power generation fan blade and other components.
[0016] Label name in the figure: 1, compressor, 2, discharge pipeline, 21, communication pipeline, 3, backflow pipeline, 4, reversing valve, 5, indoor heat exchanger, 6, branch pipe, 7, check valve, 8, expansion valve, 9, sight glass, 10, two-way dry filter, 11, outdoor heat exchanger, 12, air inlet pipe, 121, fan blade type power generation module, 122, power generation fan blade, 13, phase change energy storage module, 14, first connecting pipeline, 15, second connecting pipeline. DETAILED DESCRIPTION
[0017] The above scheme is further described below in conjunction with specific embodiments. It should be understood that these embodiments are used to illustrate the present application and do not limit the scope of the present application. The implementation conditions used in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not mentioned are usually the conditions in conventional experiments.
[0018] An energy recovery type heat pump, as shown in Figure 1 and Figure 3 , comprises a compressor 1, an exhaust pipeline 2, a communication pipeline 21, a return pipeline 3, a reversing valve 4, a heat exchange assembly, and an energy storage assembly. The lower right side of the compressor 1 is connected with the exhaust pipeline 2. The lower right side of the compressor 1 is connected with the return pipeline 3. The return pipeline 3 is located above the exhaust pipeline 2. The reversing valve 4 is connected between the right side of the exhaust pipeline 2 and the return pipeline 3. The lower right side of the reversing valve 4 is connected with the communication pipeline 21. The communication pipeline 21 is provided with the heat exchange assembly. The heat exchange assembly is provided with the energy storage assembly.
[0019] As shown in Figures 1-3 , the heat exchange assembly comprises an indoor heat exchanger 5, a branch pipe 6, a check valve 7, an expansion valve 8, a sight glass 9, a bidirectional dry filter 10, an outdoor heat exchanger 11, a first connecting pipeline 14, and a second connecting pipeline 15. The right side of the communication pipeline 21 is connected with the indoor heat exchanger 5. The right side of the indoor heat exchanger 5 is connected with the first connecting pipeline 14. The second connecting pipeline 15 is connected on the reversing valve 4. The left rear part of the second connecting pipeline 15 is connected with the outdoor heat exchanger 11. The rear side of the outdoor heat exchanger 11 is also connected with the first connecting pipeline 14. The lower side of the first connecting pipeline 14 is connected with the branch pipe 6. The branch pipe 6 is in U-shaped structure. The check valve 7 is installed in the middle part of the branch pipe 6. The expansion valve 8 is installed in the middle part of the first connecting pipeline 14. The left part of the first connecting pipeline 14 on the indoor heat exchanger 5 is connected with the sight glass 9. The bidirectional dry filter 10 is connected between the first connecting pipelines 14.
[0020] As shown in Figure 1 and Figure 4 , the energy storage assembly further comprises an air inlet pipe 12, a fan blade type power generation module 121, a power generation fan blade 122, and a phase change energy storage module 13. The upper side of the outdoor heat exchanger 11 is connected with the air inlet pipe 12. The upper part of the air inlet pipe 12 is connected with a filter screen for filtering. Three fan blade type power generation modules 121 are arranged on the inner side of the air inlet pipe 12. The upper part of the air inlet pipe 12 is rotatably connected with the power generation fan blade 122. The outdoor heat exchanger 11 and the indoor heat exchanger 5 are both connected with the phase change energy storage module 13. The phase change energy storage module 13 is a paraffin-based phase change energy storage material.
[0021] In use of the device, first install the compressor 1 to the heat pump use area, so that the outdoor heat exchanger 11 is located outdoors, the indoor heat exchanger 5 is located indoors, then connect the flue gas pipeline through the air inlet pipe 12, when the heating mode is needed to be started, the refrigerant leaves the compressor 1 in high pressure and high temperature vapor state and is transmitted to the reversing valve 4 through the discharge pipeline 2, the reversing valve 4 is in heating mode, so the refrigerant passes through the communication pipeline 21 and flows to the indoor heat exchanger 5, the cold air blows through the indoor heat exchanger 5 to remove part of the heat energy and provides warm air for the room, when the heat is removed, the refrigerant is condensed into liquid, after releasing part of the energy, the refrigerant enters the first connecting pipeline 14 on the indoor heat exchanger 5 in high pressure and slightly cold liquid state, then the refrigerant reaches the branch pipe 6, in this mode, the right expansion valve 8 is closed, the liquid refrigerant enters the first connecting pipeline 14 through the check valve 7, then passes through the sight glass 9 and the two-way dry filter 10 to the first connecting pipeline 14 on the outdoor heat exchanger 11, then the liquid refrigerant passes through the left expansion valve 8, at this time, the refrigerant is volume-expanded and becomes a mixture of part liquid and part vapor, the volume expansion reduces the temperature and pressure, then the refrigerant flows to the outdoor heat exchanger 11 through the first connecting pipeline 14, exchanges heat through the outdoor heat exchanger 11, the heat of the external air heats the refrigerant, the refrigerant boils at a lower temperature, so that the refrigerant absorbs heat energy from the external air and leaves the outdoor heat exchanger in the form of low temperature, low pressure and slightly superheated vapor, then returns to the reversing valve 4 through the second connecting pipeline 15 and backflows to the compressor 1 through the backflow pipeline 3, when the cooling mode is started, the high pressure and high temperature vapor refrigerant is made to enter the reversing valve 4 through the discharge pipeline 2 by the compressor 1, so that the refrigerant enters the outdoor heat exchanger 11 through the second connecting pipeline 15, exchanges heat through the outdoor heat exchanger 11, so that the air takes away the heat energy of the refrigerant, so that the refrigerant condenses and enters the first connecting pipeline 14 on the outdoor heat exchanger 11 in high pressure and slightly cold liquid state, at this time, the left expansion valve 8 is closed, so that the refrigerant enters the first connecting pipeline 14 on the indoor heat exchanger 5 through the check valve 7, the two-way dry filter 10 and the sight glass 9, at this time, the right check valve 7 is closed, so that the refrigerant passes through the right expansion valve 8, so that the refrigerant becomes a mixture of part liquid and part vapor, so that the pressure and temperature of the refrigerant are reduced, then flows into the indoor heat exchanger 5, exchanges heat through the indoor heat exchanger 5, so that the heat is transferred into the refrigerant in the air, so that the refrigerant flows into the reversing valve 4 through the communication pipeline 21 in low pressure, low temperature and slightly superheated state, is transferred to the backflow pipeline 3 through the reversing valve 4 and backflows to the compressor 1, the outdoor heat exchanger 11 operates at the same time, so that the flue gas in the flue gas pipeline enters the air inlet pipe 12 through the filter screen, when the flow rate and flow of the flue gas entering the air inlet pipe 12 are fast and large, the power generation fan blade 122 is driven to rotate, the fan blades in the fan type power generation module 121 also rotate,The fan blade 122 and the fan blade type power generation module 121 provide electric energy for the heat pump, and then the flue gas is discharged through the outdoor heat exchanger 11, when the flue gas flow rate is low, the fan blade 122 stops rotating, the fan blade in the fan blade type power generation module 121 continues to rotate, a small amount of electric energy is provided through the fan blade type power generation module 121, so that the flue gas flow can be used for power generation, energy recycling and energy saving, when the outdoor heat exchanger 11 and the indoor heat exchanger 5 are used, the phase change energy storage module 13 can absorb the waste heat or cold, when the heat or cold is insufficient, the phase change energy storage module 13 releases heat or cold, achieving the effect of energy storage.
[0022] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. An energy recovery heat pump, characterized by, It includes a compressor (1), a discharge pipe (2), a connecting pipe (21), a return pipe (3), a reversing valve (4), a heat exchange component, and an energy storage component. The lower right side of the compressor (1) is connected to the discharge pipe (2), and the lower right side of the compressor (1) is connected to the return pipe (3). The return pipe (3) is located above the discharge pipe (2). The right side of the discharge pipe (2) and the return pipe (3) is connected to the reversing valve (4). The lower right side of the reversing valve (4) is connected to the connecting pipe (21). The connecting pipe (21) is equipped with a heat exchange component that can exchange heat with air. The heat exchange component is equipped with an energy storage component that can generate electricity through flue gas.
2. An energy recovery heat pump as claimed in claim 1, characterised in that, The heat exchange assembly includes an indoor heat exchanger (5), a branch pipe (6), a check valve (7), an expansion valve (8), a sight glass (9), a two-way dryer filter (10), an outdoor heat exchanger (11), a first connecting pipe (14), and a second connecting pipe (15). The indoor heat exchanger (5) is connected to the right side of the connecting pipe (21), and the first connecting pipe (14) is connected to the right side of the indoor heat exchanger (5). The second connecting pipe (15) is connected to the reversing valve (4). An outdoor heat exchanger (11) is connected to the left rear part. A first connecting pipe (14) is also connected to the rear side of the outdoor heat exchanger (11). A branch pipe (6) is connected to the lower side of the first connecting pipe (14). A check valve (7) is installed in the middle of the branch pipe (6). An expansion valve (8) is installed in the middle of the first connecting pipe (14). A sight glass (9) is connected to the left side of the first connecting pipe (14) on the indoor heat exchanger (5). A two-way drying filter (10) is connected between the first connecting pipes (14).
3. An energy recovery heat pump as claimed in claim 2, characterised in that, All branch pipes (6) are U-shaped structures.
4. The energy recovery heat pump of claim 1, wherein, It also includes an energy storage component, which includes an air inlet pipe (12), a fan-shaped power generation module (121), a power generation fan blade (122), and a phase change energy storage module (13). The air inlet pipe (12) is connected to the upper side of the outdoor heat exchanger (11). Multiple fan-shaped power generation modules (121) are provided inside the air inlet pipe (12). The power generation fan blade (122) is rotatably connected to the upper part of the air inlet pipe (12). The phase change energy storage module (13) is connected to both the outdoor heat exchanger (11) and the indoor heat exchanger (5).
5. An energy recovery heat pump as claimed in claim 4, characterised in that, A filter screen is connected to the upper part of the air intake pipe (12).
6. An energy recovery heat pump as claimed in claim 4, characterised in that, The phase change energy storage module (13) is a paraffin-based phase change energy storage material.