Waste heat recovery device of air source heat pump

Abstract

The invention relates to the technical field of air source heat pumps, in particular to a waste heat recovery device of an air source heat pump, which comprises a snakelike flow guide pipe for conveying gas with waste heat, and a shell for filling low-temperature water is arranged on the snakelike flow guide pipe. The lower end, located outside the shell, of the snakelike flow guide pipe is in threaded connection with an external pipe used in cooperation with the snakelike flow guide pipe, a containing groove is formed in the external pipe, a filtering assembly is contained in the containing groove, a mounting shaft is arranged on the shell in a sliding sealing mode, and fan blades are arranged at the end, located in the shell, of the mounting shaft. The shell is provided with a driving mechanism used for driving the fan blades to rotate and move horizontally. According to the air source heat pump, a low-temperature water body makes direct contact with the snakelike flow guide pipe, the waste heat recovery efficiency of the air source heat pump is improved, the low-temperature water body is stirred in multiple directions through the driving mechanism, and the heating uniformity of the low-temperature water body is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of air source heat pumps, and in particular to a waste heat recovery device of an air source heat pump. Background Art

[0002] An air source heat pump is an energy-saving device that uses high-level energy to make heat flow from a low-level heat source to a high-level heat source. It is a form of heat pump that can convert low-level heat energy that cannot be directly used into high-level heat energy that can be used, thereby achieving the purpose of saving some high-level energy.

[0003] The prior art mostly adopts a waste heat recovery device of an air source heat pump disclosed by announcement number CN221549016U. The present invention effectively avoids the problem that impurities are easily accumulated in the pipeline, which affects the recovery of waste heat and easily causes pipeline blockage. The prior art represented by the above device has the following defects during use: Water is filled in the spiral heat exchange tube, and heat exchange is achieved through the contact between the spiral heat exchange tube and the serpentine guide tube, but the water does not come into direct contact with the serpentine guide tube, resulting in a large loss rate of waste heat contained in the gas in the serpentine guide tube during the conduction process, affecting the waste heat recovery effect. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that water does not come into direct contact with the serpentine guide pipe, resulting in a large loss rate of waste heat during the conduction process, and to propose a waste heat recovery device for an air source heat pump.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A waste heat recovery device for an air source heat pump, comprising a serpentine guide pipe for transmitting gas with waste heat, the serpentine guide pipe being provided with a shell for filling low-temperature water, the shell being provided with a tube body for filling low-temperature water or discharging high-temperature water, and the tube body being provided with a corresponding valve body, the lower end of the serpentine guide pipe located outside the shell being threadedly connected to an external tube used in conjunction with the serpentine guide pipe, a receiving groove being provided in the external tube, a filter assembly being received in the receiving groove, an installation shaft being provided on the shell in a sliding sealing manner, a fan blade being provided at one end of the installation shaft located in the shell, and a driving mechanism for driving the fan blade to rotate and move horizontally being provided on the shell.

[0006] Preferably, the filter assembly comprises: A filter plate and a guide ring groove, wherein the filter plate is slidably mounted in the external pipe, and the guide ring groove is provided on the filter plate; A spring and a resistance block, wherein the spring is fixedly connected to the guide ring groove, and the resistance block is fixedly connected to an end of the spring away from the guide ring groove.

[0007] Preferably, the filter plate is a disc structure, the abutment block movably abuts against the receiving groove, and the cross section of the abutment block is a triangular structure.

[0008] Preferably, the spring and the abutment block are equidistantly arranged on the guide ring groove in the circumferential direction.

[0009] Preferably, the driving mechanism comprises: A mounting plate, the mounting plate being fixedly connected to the housing; A first motor, a lead screw and a movable slider, wherein the first motor is fixedly mounted on a mounting plate, the lead screw is fixedly connected to an output end of the first motor, and the movable slider is matched with and mounted on the lead screw; A mounting platform, the mounting platform is fixedly connected to the moving slider; The second motor is fixedly connected to the mounting platform, and the output end of the second motor is fixedly connected to one end of the mounting shaft located outside the housing.

[0010] Preferably, the movable slider is provided with a nut matched with the lead screw.

[0011] Preferably, the mounting plate is provided with guide slots located on both sides of the lead screw, and a guide sliding block fixedly connected to the mounting platform is slidably sleeved in the guide slots.

[0012] Preferably, the mounting platform is a trapezoidal platform structure.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention helps to improve the waste heat recovery efficiency of the air source heat pump by directly contacting the low-temperature water body with the serpentine guide tube, and stirs the low-temperature water body in multiple directions through the driving mechanism, which helps to ensure the uniformity of heating of the low-temperature water body, and uses the valve body to ensure the sealing of the internal space of the shell, which helps to avoid heat loss during heat exchange of the low-temperature water body.

[0014] 2. The present invention filters the gas through the filter assembly to prevent impurities from entering the serpentine guide pipe and causing the pipe to be blocked. The filter assembly can be disassembled by pressing the filter plate to shrink the resistance block into the guide ring groove, which helps to improve the disassembly and assembly efficiency of the filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a waste heat recovery device for an air source heat pump proposed by the present invention; Figure 2 For the present invention Figure 2 A cross-sectional view of Figure 3 This is a schematic diagram of the driving mechanism structure of a waste heat recovery device of an air source heat pump proposed by the present invention; Figure 4 For the present invention Figure 3 Bottom view in Figure 5 This is a schematic diagram of the structure of a filter assembly of a waste heat recovery device of an air source heat pump proposed by the present invention; Figure 6 For the present invention Figure 5 Sectional view in .

[0016] In the figure: 1. Serpentine guide tube; 2. Shell; 3. External tube; 4. Storage groove; 5. Filter assembly; 501. Filter plate; 502. Guide ring groove; 503. Spring; 504. Resistance block; 6. Mounting shaft; 7. Fan blade; 8. Driving mechanism; 801. Mounting plate; 802. First motor; 803. Lead screw; 804. Moving slider; 805. Mounting table; 806. Second motor. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1

[0018] Please refer to the instruction manual Figure 2 , Instruction Manual Figure 5 With the instruction manual Figure 6 The present invention provides a technical solution: a waste heat recovery device of an air source heat pump, comprising a serpentine flow guide pipe 1 for transmitting waste heat gas, the serpentine flow guide pipe 1 is made of copper. It should be noted that copper is a metal element with good ductility, high thermal conductivity and electrical conductivity, which helps to ensure the heat exchange efficiency of the gas. The serpentine flow guide pipe 1 is provided with a shell 2 for filling low-temperature water, and the shell 2 is provided with a pipe body for filling low-temperature water or discharging high-temperature water, and a corresponding valve body is provided on the pipe body. The valve body controls the opening and closing of the pipe body, thereby ensuring the sealing when the low-temperature water in the shell 2 does not need to be discharged, thereby reducing the heat contained in the low-temperature water during heat exchange from being dissipated into the outside air, which helps to improve the waste heat recovery efficiency of the device. By filling the shell 2 with low-temperature water, the serpentine flow guide pipe 1 is fully covered, so that water is in direct contact with the serpentine flow guide pipe 1, further increasing the contact area between the low-temperature water and the serpentine flow guide pipe 1, which helps to improve the heat exchange efficiency between the low-temperature water and the serpentine flow guide pipe 1.

[0019] Based on the setting of the serpentine guide tube 1, in order to remove gas impurities entering the serpentine guide tube 1, an external tube 3 used in conjunction with the serpentine guide tube 1 is threadedly connected to the lower end of the serpentine guide tube 1 located outside the shell 2, and a receiving groove 4 is opened in the external tube 3, in which a filter component 5 is received. Through the threaded connection of the external tube 3 and the serpentine guide tube 1 and the snap connection of the filter component 5 and the receiving groove 4, the external tube 3 can drive the filter component 5 to move horizontally on the serpentine guide tube 1 through the receiving groove 4, so that the filter component 5 and the serpentine guide tube 1 are moved against each other, thereby ensuring that the filter component 5 is not affected by the force tending to the direction of the serpentine guide tube 1 when the external tube 3 is connected to the serpentine guide tube 1, which helps to ensure the filtering effect of the filter component 5 when the serpentine guide tube 1 is connected to the external tube 3.

[0020] Further implementation method is that the filter assembly 5 includes a filter plate 501, a guide ring groove 502, a spring 503 and a resistance block 504, and each component is arranged as follows: The filter plate 501 is slidably mounted in the external pipe 3. The filter plate 501 is a disc structure. The guide ring groove 502 is opened on the filter plate 501. The spring 503 is fixedly connected to the guide ring groove 502. The resistance block 504 is fixedly connected to the end of the spring 503 away from the guide ring groove 502. The spring 503 is a mechanical part that works by elasticity. The parts made of elastic materials are deformed under the action of external force and return to their original state after the external force is removed. The spring 503 is used as an elastic reset element to ensure that the resistance block 504 is reset when it is not squeezed by external force. The resistance block 504 and the storage groove 4 The spring 503 and the resistance block 504 are circumferentially equidistantly arranged on the guide ring groove 502, and the cross-section of the resistance block 504 is a triangular structure. Therefore, the end faces on both sides of the resistance block 504 that contact the storage groove 4 are inclined, so that the resistance block 504 and the storage groove 4 are in line contact, which helps to improve the sensitivity of the resistance block 504 when subjected to force. When a large external force presses the filter plate 501, the resistance block 504 is deformed by the force, so that the filter assembly 5 is no longer restricted by the storage groove 4, thereby realizing the disassembly and assembly of the filter assembly 5, which helps to improve the efficiency of the staff in replacing the filter assembly 5.

[0021] It should be noted that the specific model specifications of the valve body and the filter plate 501 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it is not repeated here.

[0022] The functional principle of the above embodiment 1 can be explained through the following operation mode: Open the valve body to pour low-temperature water into the shell 2, close the valve body, place the filter assembly 5 on one end of the external pipe 3 close to the serpentine guide tube 1, and the abutment block 504 is squeezed by the wall of the external pipe 3, so that the abutment block 504 squeezes the spring 503 and enters the guide ring groove 502. Continue to push the filter assembly 5 deeper into the external pipe 3, and when the abutment block 504 enters the receiving groove 4, under the elastic force of the spring 503, the abutment block 504 moves toward the initial state in the receiving groove 4 until it is reset. At this time, stop pushing the filter assembly 5, and thread the external pipe 3 on the serpentine guide tube 1 until the serpentine guide tube 1 and the filter assembly 5 are in contact with each other, and the gas enters the serpentine guide tube 1 through the external pipe 3, and absorbs heat using the low-temperature water in the shell 2, thereby achieving the purpose of recovering the waste heat of the gas, open the valve body to discharge the high-temperature water out of the shell 2, and close the valve body. Embodiment 2

[0023] As the instruction manual Figure 1 , Instruction Manual Figure 3 With the instruction manual Figure 4 As shown, the waste heat recovery device of the air source heat pump disclosed in the second embodiment of the present invention has a structure that is basically the same as that in the first embodiment, and the difference lies in that the low-temperature water body in the shell 2 is actively stirred, including: a mounting shaft 6 is provided on the shell 2 by a sliding seal, and a fan blade 7 is provided at one end of the mounting shaft 6 located in the shell 2. The specific number of the fan blades 7 needs to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it is not repeated.

[0024] Based on the setting of the shell 2, in order to achieve active stirring of the low-temperature water body and thereby improve the heat exchange efficiency between the low-temperature water body and the serpentine guide tube 1, a driving mechanism 8 is provided on the shell 2 for driving the fan blades 7 to rotate and move horizontally.

[0025] Further implementation method is that the driving mechanism 8 includes a mounting plate 801, a first motor 802, a lead screw 803, a movable slider 804, a mounting platform 805 and a second motor 806, and each component is arranged as follows: The mounting plate 801 is fixedly connected to the shell 2, the first motor 802 is fixedly installed on the mounting plate 801, the lead screw 803 is fixedly connected to the output end of the first motor 802, the moving slider 804 is mounted on the lead screw 803, and the moving slider 804 is provided with a nut matched with the lead screw 803. The mounting platform 805 is fixedly connected to the moving slider 804, and the mounting platform 805 is driven to move horizontally by the lead screw 803 and the moving slider 804, and then the second motor 806 installed on the mounting platform 805 drives the mounting shaft 6 and the fan blade 7 to move horizontally, so that the outer ring part and the inner ring part of the low-temperature water in the shell 2 are continuously interchanged, which helps to ensure the uniformity of the low-temperature water body when exchanging heat with the serpentine guide tube 1.

[0026] The mounting platform 805 is a trapezoidal platform structure, and the mounting plate 801 is provided with guide grooves located on both sides of the lead screw 803. The sliding sleeve in the guide groove is provided with a guide slider fixedly connected to the mounting platform 805. The guide slider is guided and limited by the guide groove, so as to ensure the stability of the guide slider during movement, which helps to ensure the stability of the mounting platform 805 fixedly connected to the guide slider during movement, and reduce the load when the movable slider 804 drives the mounting platform 805 to move. The guide groove and the guide slider are selected as the sliding mode to guide and support the mounting platform 805. The guide groove can effectively reduce the weight of the mounting plate 801, which helps to achieve lightweight mounting plate 801.

[0027] The second motor 806 is fixedly connected to the mounting platform 805, and the output end of the second motor 806 is fixedly connected to one end of the mounting shaft 6 located outside the shell 2. The mounting shaft 6 is driven to rotate by the second motor 806, and then the fan blades 7 are driven to rotate by the mounting shaft 6. The rotation of the fan blades 7 disrupts the flow direction of the low-temperature water body, causing the low-temperature water body to move violently in the shell 2. The setting of the lead screw 803 and the movable slider 804 is coordinated to drive the second motor 806 to move horizontally through the mounting platform 805, thereby further increasing the intensity of the movement of the low-temperature water body in the shell 2, which helps to improve the heat conduction effect between the low-temperature water body and the serpentine guide tube 1.

[0028] It should be noted that the specific models and specifications of the first motor 802 and the second motor 806 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it is not repeated here.

[0029] The functional principle of the above-mentioned embodiment 2 can be explained through the following operation mode: Start the second motor 806, the second motor 806 drives the installation shaft 6 to rotate, the installation shaft 6 drives the fan blades 7 to rotate, the fan blades 7 disturb the low-temperature water body in the shell 2, and at the same time, start the first motor 802, the first motor 802 drives the screw 803 to rotate, so that the movable slider 804 moves horizontally, the movable slider 804 drives the installation platform 805 to move horizontally, the installation platform 805 drives the second motor 806 to move horizontally, the second motor 806 drives the installation shaft 6 to move horizontally, the installation shaft 6 drives the fan blades 7 to move horizontally, and the stirring efficiency of the fan blades 7 on the low-temperature water body is further improved, so that the low-temperature water body is fully in contact with the serpentine guide tube 1. After the heat exchange is completed, the valve body is opened to discharge the high-temperature water body out of the shell 2, and the valve body is closed.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste heat recovery device for an air source heat pump, comprising a serpentine flow guide pipe (1) for transmitting gas with waste heat, characterized in that: The serpentine flow guide pipe (1) is provided with a shell (2) for filling low-temperature water, the shell (2) is provided with a tube body for filling low-temperature water or discharging high-temperature water, and a corresponding valve body is provided on the tube body. The lower end of the serpentine flow guide pipe (1) located outside the shell (2) is threadedly connected to an external tube (3) used in conjunction with the serpentine flow guide pipe (1), a receiving groove (4) is provided in the external tube (3), and a filter assembly (5) is received in the receiving groove (4). The shell (2) is provided with a mounting shaft (6) in a sliding sealing manner, and a fan blade (7) is provided at one end of the mounting shaft (6) located in the shell (2). The shell (2) is provided with a driving mechanism (8) for driving the fan blade (7) to rotate and perform horizontal movement.

2. The waste heat recovery device of an air source heat pump according to claim 1, characterized in that: The filtering component (5) comprises: A filter plate (501) and a guide ring groove (502), wherein the filter plate (501) is slidably mounted in the external tube (3), and the guide ring groove (502) is formed on the filter plate (501); A spring (503) and a resistance block (504), wherein the spring (503) is fixedly connected to the guide ring groove (502), and the resistance block (504) is fixedly connected to an end of the spring (503) away from the guide ring groove (502).

3. The waste heat recovery device of an air source heat pump according to claim 2, characterized in that: The filter plate (501) is a disc structure, the abutment block (504) movably abuts against the storage groove (4), and the cross section of the abutment block (504) is a triangular structure.

4. The waste heat recovery device of an air source heat pump according to claim 2, characterized in that: The spring 503 and the abutment block 504 are equidistantly arranged on the guide ring groove 502 in the circumferential direction.

5. The waste heat recovery device of an air source heat pump according to claim 1, characterized in that: The driving mechanism (8) comprises: A mounting plate (801), wherein the mounting plate (801) is fixedly connected to the housing (2); A first motor (802), a lead screw (803) and a movable slider (804), wherein the first motor (802) is fixedly mounted on the mounting plate (801), the lead screw (803) is fixedly connected to the output end of the first motor (802), and the movable slider (804) is mounted on the lead screw (803); A mounting platform (805), wherein the mounting platform (805) is fixedly connected to the movable slider (804); A second motor (806), the second motor (806) is fixedly connected to the mounting platform (805), and an output end of the second motor (806) is fixedly connected to an end of the mounting shaft (6) located outside the housing (2).

6. The waste heat recovery device of an air source heat pump according to claim 5, characterized in that: The movable slider (804) is provided with a nut matched with the lead screw (803).

7. The waste heat recovery device of an air source heat pump according to claim 5, characterized in that: The mounting plate (801) is provided with guide slots located on both sides of the lead screw (803), and a guide sliding block fixedly connected to the mounting platform (805) is slidably sleeved in the guide slots.

8. The waste heat recovery device of an air source heat pump according to claim 5, characterized in that: The mounting platform (805) is a trapezoidal platform structure.

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