A solar-powered air-source heat pump evaporator with thermal energy storage and its application method

Abstract

This invention relates to a solar-powered air-source heat pump evaporator with thermal storage, comprising an evaporator body, a cleaning box connected to the front end of an air inlet pipe, a filter plate installed on the inner wall of the cleaning box, a dust removal unit installed inside the cleaning box, the dust removal unit including a dust collection frame fitted to the front of the filter plate, a block installed through the top wall of the cleaning box, a restraint unit installed on the top of the cleaning box, the restraint unit including a rack plate connected to the outer surface of the block, an L-shaped support rod installed on the top surface of the cleaning box, a gear connected to the tail end of the support rod via a bearing, a through discharge chute at the bottom of the block, a baffle slidably connected to the inner wall of the dust collection frame, and a vent pipe installed through the bottom wall of the dust collection frame, which can assist the dust collection frame in completing the corresponding debris cleaning operation on the surface of the filter plate, and can also use wind power to concentrate and lift the debris inside the dust collection frame to the exposed discharge chute, facilitating ash discharge.

Description

Technical Field

[0001] This invention relates to a solar-powered air-source heat pump evaporator with thermal energy storage and its method of use, particularly to a solar-powered air-source heat pump evaporator with thermal energy storage and its method of use applied in the field of air-source heat pump evaporators. Background Technology

[0002] An air source heat pump is a device that uses the energy of outdoor air to transfer energy from a low-grade heat source to a high-grade heat source through mechanical work. It provides heat by releasing heat from the condenser and cools by absorbing heat from the evaporator. During operation, solar thermal storage equipment can be added to enhance the evaporation effect. However, impurities and debris can accumulate at the air inlet of the evaporator, causing blockage and hindering the acquisition of air heat energy. Therefore, it is necessary to clean and unclog the air inlet of the evaporator in a timely manner.

[0003] To address the issue of evaporator inlet blockage, a certain heat pump evaporator on the market employs an automated dust removal design, which has a significant market share.

[0004] Chinese patent CN202121196476.9 discloses an air source heat pump evaporator, including a base, an air source heat pump evaporator, a first outer shell, and a screen. The outer wall of the rack is clearance-fitted with the inner wall of the top left side of the first outer shell. A long plate is fixedly connected to the bottom of the rack. The bottom left side of the long plate is fixedly connected to the top of a first motor via a bracket. A first grooved wheel is fixedly connected to the output end of the first motor. The outer wall of the first grooved wheel is rotatably connected to the outer wall of a second grooved wheel via a belt. The rear end face of the second grooved wheel is fixedly connected to the front pin of a brush wheel. The rear end face of the brush wheel is rotatably connected to the bottom right side of the long plate via a pin. This device, through the cooperation between the screen, the first outer shell, and the long plate, filters impurities in the air, preventing the air inlet from accumulating a thick layer of impurities, thus avoiding these impurities from obstructing airflow, improving the working efficiency of the evaporator, and preventing device malfunction.

[0005] The evaporator described above can clean the blockages on the screen surface during operation, but the cleaned debris remains inside the air inlet, which may lead to secondary blockages. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to clean the debris at the air inlet of the evaporator while transferring the cleaned debris to the outside of the air inlet to avoid the debris from clogging the inside of the air inlet again.

[0007] To address the aforementioned problems, this invention provides a solar-powered air-source heat pump evaporator with thermal storage and its usage method. The evaporator includes an evaporator body, a solar panel electrically connected to the back of the evaporator body, an inlet pipe connected to the input end of the evaporator body, an outlet pipe connected to the output end of the evaporator body, a cleaning box connected to the front end of the inlet pipe, a filter plate installed on the inner wall of the cleaning box, a dust removal unit installed inside the cleaning box, the dust removal unit including a dust collection frame fitted to the front of the filter plate, a block with the same cross-sectional area as the dust collection frame installed through the top wall of the cleaning box, a constraint unit installed on the top of the cleaning box, and the constraint unit including a rack plate connected to the outer surface of the block. An L-shaped support rod is installed on the top surface of the cleaning box, the tail end of the support rod is connected to a gear meshing with the rack plate via a bearing, a through discharge chute is provided at the bottom of the block, a baffle is slidably connected to the inner wall of the dust collection frame, and a vent pipe is installed through the bottom wall of the dust collection frame.

[0008] In the aforementioned solar thermal storage air source heat pump evaporator, while assisting the ash collection frame in completing the corresponding debris cleaning operation on the filter plate surface, the ash collection frame can also be lifted by the ventilation pipe and the wind force when it moves upward, so as to facilitate the ash discharge treatment.

[0009] As a further improvement of this application, the cross-sectional height of the blocking block is greater than the thickness of the top wall of the cleaning box, the cross-section of the blocking block is an inverted U-shape, the surfaces of the gears that are close to each other are equipped with fan blades with uniformly arranged fan blades, the top of the dust collection frame is equipped with an electromagnetic block, and the bottom of the blocking block is equipped with a magnetic coating that has a magnetic attraction effect with the electromagnetic block.

[0010] As a further improvement of this application, the dust removal unit also includes a servo motor installed in front of the blockage block, and the servo motor is electrically connected to the electromagnetic block. The output end of the servo motor is connected to a reciprocating screw located inside the cleaning box. A nut is sleeved on the surface of the reciprocating screw, and a crossbar is connected to the surface of the nut. The tail end of the crossbar is fixedly connected to the surface of the dust collection frame.

[0011] As a further improvement of this application, the top of the cleaning box is provided with a recessed groove symmetrically arranged with respect to the blockage, and the recessed groove matches the rack plate, and the depth of the recessed groove is less than the thickness of the top wall of the cleaning box.

[0012] As a further improvement of this application, a solenoid valve is installed on the surface of the vent pipe, and the solenoid valve is electrically connected to the servo motor.

[0013] As another improvement of this application, an elastic diaphragm with an arc-shaped cross section is installed on the top of the baffle, and a breathable plate is installed through the inside of the baffle. Telescopic folding tubes with their tail ends connected to the inner surface of the elastic diaphragm are installed at equal intervals at the center of the top of the breathable plate, and a one-way tube located outside the elastic diaphragm is installed through the inside of the baffle.

[0014] As a further improvement to this application, the width of the projection of the elastic diaphragm onto the baffle surface is smaller than the cross-sectional width of the baffle, and the elastic diaphragm is made of a highly elastic material.

[0015] As a further improvement to this application, a counterweight is fixedly connected to the top of the elastic diaphragm, and the length of the counterweight is the same as the length of the elastic diaphragm.

[0016] As a further improvement to this application, a method of using a solar-powered air-source heat pump evaporator includes the following steps:

[0017] S1. When the evaporator is working, the outside air is first intercepted and processed by the purging box and then enters the evaporator through the air inlet pipe. At the same time, the solar panel transfers the electricity converted by photovoltaic power to the inside of the evaporator.

[0018] S2. The dust removal unit can be used to clean the clogging debris on the surface of the filter plate and transfer the debris to the inside of the dust collection frame.

[0019] S3. When the dust collection frame moves to the bottom of the block, as the dust collection frame continues to move upward, it drives the block to move upward. At the same time, the vent pipe is opened, and the baffle inside the dust collection frame moves upward under the action of wind force, pushing the dust accumulated inside the dust collection frame upward.

[0020] S4. The dust collection frame moves the blockage block upward until the discharge chute exposes the top of the cleaning box. Under the action of the baffle moving upward, the accumulated dust can be discharged from the inside of the cleaning box through the discharge chute.

[0021] S5. The dust collection frame moves down, and the block moves down simultaneously to seal the top of the cleaning box.

[0022] In summary, this invention utilizes a cleaning box, a dust collection frame, a baffle, a venting pipe, a constraint unit, a block, and a discharge chute. It assists the dust collection frame in completing the corresponding debris cleaning operation on the filter plate surface. Furthermore, when the dust collection frame moves upwards, the venting pipe allows airflow to concentrate and lift the debris inside the dust collection frame to the exposed discharge chute using wind power, facilitating ash removal. Simultaneously, a deformable elastic diaphragm helps to efficiently clean debris from the center of the baffle surface into the discharge chute. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the overall appearance structure of the first and second embodiments of this application;

[0024] Figure 2 This is a schematic diagram of the internal structure of the cleaning box according to the first and second embodiments of this application;

[0025] Figure 3 This is the first and second embodiment of this application. Figure 2 Enlarged diagram of point A in the diagram;

[0026] Figure 4 This is the first and second embodiment of this application. Figure 3 Enlarged diagram of point B in the diagram;

[0027] Figure 5 These are cross-sectional structural views of the cleaning box according to the first and second embodiments of this application;

[0028] Figure 6 This is an installation diagram of the blocking block, the discharge chute, and the fan blade rod according to the first and second embodiments of this application;

[0029] Figure 7 This is a schematic diagram of the ash discharge state inside the cleaning box in the first and second embodiments of this application;

[0030] Figure 8 This is the first and second embodiment of this application. Figure 7 Enlarged diagram of point D in the diagram;

[0031] Figure 9 This is a schematic diagram showing the installation of the baffle, elastic diaphragm, breathable plate, telescopic folding tube, and counterweight bar in the second embodiment of this application.

[0032] Figure 10 This is a schematic diagram showing the state of the elastic diaphragm filling and assisting in ash removal in the second embodiment of this application.

[0033] Explanation of the labels in the diagram:

[0034] 1. Evaporator body; 2. Solar panel; 3. Outlet pipe; 4. Inlet pipe; 5. Cleaning box; 6. Servo motor; 61. Reciprocating screw; 62. Crossbar; 63. Dust collection frame; 64. Baffle; 65. Vent pipe; 7. Filter plate; 8. Constraint unit; 81. Rack plate; 82. Support rod; 83. Gear; 84. Fan blade rod; 9. Block; 91. Discharge chute; 641. Elastic diaphragm; 642. Ventilation plate; 643. Telescopic folding tube; 644. Counterweight bar. Detailed Implementation

[0035] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0036] Implementation method 1:

[0037] Figures 1-8 This diagram illustrates a solar-powered air-source heat pump evaporator, comprising an evaporator body 1, a solar panel 2 electrically connected to the back of the evaporator body 1, an inlet pipe 4 connected to the inlet end of the evaporator body 1, an outlet pipe 3 connected to the outlet end of the evaporator body 1, a cleaning box 5 connected to the front end of the inlet pipe 4, a filter plate 7 installed on the inner wall of the cleaning box 5, and a dust removal unit installed inside the cleaning box 5. The dust removal unit includes a dust collection frame 63 attached to the front of the filter plate 7. A block 9 with the same cross-sectional area as the ash collection frame 63 is installed through the top wall. A constraint unit 8 is installed on the top of the cleaning box 5, and the constraint unit 8 includes a rack plate 81 connected to the outer surface of the block 9. An L-shaped support rod 82 is installed on the top surface of the cleaning box 5. The tail end of the support rod 82 is connected to a gear 83 that meshes with the rack plate 81 through a bearing. A discharge chute 91 is provided through the bottom of the block 9. A baffle 64 is slidably connected to the inner wall of the ash collection frame 63. A vent pipe 65 is installed through the bottom wall of the ash collection frame 63.

[0038] The height of the block 9 is greater than the thickness of the top wall of the cleaning box 5. The cross-section of the block 9 is an inverted U-shape. The surfaces of the gears 83 that are close to each other are fitted with fan blades that are evenly arranged on the surface. An electromagnetic block is installed on the top of the dust collection frame 63, and a magnetic coating with magnetic attraction between the block 9 and the electromagnetic block is installed on the bottom of the block 9.

[0039] The dust removal unit also includes a servo motor 6 installed in front of the block 9, and the servo motor 6 is electrically connected to the electromagnetic block. The output end of the servo motor 6 is connected to a reciprocating screw 61 located inside the cleaning box 5. A nut is sleeved on the surface of the reciprocating screw 61, and a crossbar 62 is connected to the surface of the nut. The tail end of the crossbar 62 is fixedly connected to the surface of the dust collection frame 63.

[0040] The top of the cleaning box 5 is provided with a sinkhole symmetrically arranged with respect to the block 9, and the sinkhole matches the rack plate 81. The depth of the sinkhole is less than the thickness of the top wall of the cleaning box 5.

[0041] A solenoid valve is mounted on the surface of the vent pipe 65, and the solenoid valve is electrically connected to the servo motor 6.

[0042] Specifically, when the solar thermal storage air source heat pump evaporator of the present invention is working, the solar panel 2 converts the absorbed solar energy into electrical energy, which is then transmitted to the evaporator body 1 to reduce the power supply burden of the evaporator body 1.

[0043] Meanwhile, outside air enters the evaporator body 1 through the air inlet pipe 4 after passing through the purging box 5, and is then discharged through the air outlet pipe 3.

[0044] When outside air passes through the cleaning box 5, the debris mixed in the outside air is intercepted by the filter plate 7. In order to prevent the filter plate 7 from being blocked by debris, the servo motor 6 of the dust removal unit is started, which drives the reciprocating screw 61 to rotate, thereby driving the dust collection frame 63, which was originally located at the lower end of the filter plate 7, to move up along the surface of the filter plate 7. At the same time, through the adhesion between the surface of the filter plate 7 and the dust collection frame 63, the debris blocking the surface of the filter plate 7 is scraped into the interior of the dust collection frame 63, thus achieving surface unblocking and cleaning of the filter plate 7.

[0045] When the ash collection frame 63 moves to the tail end of the block 9, the top of the ash collection frame 63 contacts the tail end of the block 9 and, as the ash collection frame 63 continues to move upward, it drives the block 9 to move upward. During this process, the discharge chute 91 is always embedded in the top wall of the cleaning box 5, so that the top of the cleaning box 5 can remain closed and avoid disrupting the air intake. Before the ash collection frame 63 exerts a lifting and squeezing effect on the block 9, the meshing action of the rack plate 81 and the gear 83 helps the block 9 resist the upward pushing action of the wind entering the cleaning box 5, thereby ensuring that the block 9 is stably fitted into the top of the cleaning box 5.

[0046] As the ash collection frame 63 continues to move upward, it causes the block 9 to move upward as well, thus exposing the discharge chute 91 to the top of the cleaning box 5. (Since the vertical distance between the top of the discharge chute 91 and the bottom wall of the cleaning box 5 is constant, and the upward speed of the ash collection frame 63 is constant due to the constant speed of the servo motor 6, the position of the discharge chute 91 at the constant time point after the servo motor 6 starts is exactly at the top of the cleaning box 5.) At this time, the solenoid valve on the surface of the vent pipe 65 opens, allowing the baffle 64 to be lifted by the wind, pushing the debris accumulated in the ash collection frame 63 upward, and then the debris in the ash collection frame 63 can be discharged through the discharge chute 91.

[0047] During the process of discharging debris from the ash collection frame 63, the ash collection frame 63 continues to move upward, thereby driving the gear 83 to rotate, which in turn drives the fan blade 84 to rotate, blowing away the debris accumulated on the surface of the cleaning box 5, allowing the debris to spread and transfer, and preventing foreign objects from accumulating at the discharge chute 91 and causing blockage of the discharge chute 91.

[0048] When the ash collection frame 63 moves down, the electromagnetic block is activated, which in turn drives the blocking block 9 to move down synchronously. This allows the blocking block 9 to avoid the constraint and obstruction of the meshing action of the rack plate 81 and the gear 83. After moving down to the original position normally, the electromagnetic block is deactivated. The blocking block 9 continues to maintain a stable locking effect due to the meshing action of the rack plate 81 and the gear 83, and the ash collection frame 63 can continue to move down.

[0049] A method for using a solar-powered air-source heat pump evaporator includes the following steps:

[0050] S1. When the evaporator body 1 is working, the outside air is first intercepted and processed by the purging box 5 and then enters the evaporator body 1 through the air inlet pipe 4. At the same time, the solar panel 2 transfers the electricity converted by photovoltaic to the interior of the evaporator body 1.

[0051] S2. Using the dust removal unit, the blockage debris on the surface of the filter plate 7 can be cleaned and transferred to the inside of the dust collection frame 63;

[0052] S3. When the dust collection frame 63 moves up to the bottom position of the block 9, as the dust collection frame 63 continues to move up, it drives the block 9 to move up. At the same time, the ventilation pipe 65 is opened, and the baffle 64 inside the dust collection frame 63 moves up under the action of wind force and pushes the dust accumulated inside the dust collection frame 63 upward.

[0053] S4. The dust collection frame 63 drives the block 9 to continue moving upward until the discharge chute 91 exposes the top of the cleaning box 5. Under the action of the baffle 64 moving upward, the accumulated dust can be discharged from the inside of the cleaning box 5 through the discharge chute 91.

[0054] S5. The ash collection frame 63 moves down, and the blocking block 9 moves down simultaneously to seal the top of the cleaning box 5.

[0055] The second implementation method:

[0056] Figures 9-10 As shown, components that are the same as or corresponding to those in the first embodiment are represented by reference numerals corresponding to those in the first embodiment. For simplicity, only the differences from the first embodiment will be described below. The difference between this second embodiment and the first embodiment is that: an elastic diaphragm 641 with an arc-shaped cross-section is installed on the top of the baffle 64; a breathable plate 642 is embedded through the inside of the baffle 64; telescopic folding tubes 643, whose tail ends are connected to the inner surface of the elastic diaphragm 641, are equidistantly installed at the center of the top of the breathable plate 642; and a one-way tube located outside the elastic diaphragm 641 is installed through the inside of the baffle 64.

[0057] The width of the projection of the elastic diaphragm 641 onto the surface of the baffle 64 is smaller than the cross-sectional width of the baffle 64, and the elastic diaphragm 641 is made of a highly elastic material.

[0058] A counterweight 644 is fixedly connected to the top of the elastic diaphragm 641, and the length of the counterweight 644 is the same as the length of the elastic diaphragm 641.

[0059] Specifically, this embodiment is adopted to ensure that the debris located in the center of the baffle 64 can be smoothly discharged when the baffle 64 moves upward;

[0060] When the baffle 64 moves upward, the vent plate 642 can form an air intake channel, allowing the space between the baffle 64 and the elastic diaphragm 641 to be inflated. At the same time, the telescopic folding tube 643 is inflated and stretched synchronously, which provides a restraining lifting treatment for the elastic diaphragm 641. As a result, the elastic diaphragm 641 is filled to form a slope structure with an inverted V-shaped cross section, so as to transfer the debris on the surface of the baffle 64 to the end, and facilitate the efficient transfer of the debris on the surface of the baffle 64 to the discharge chute 91 for discharge.

[0061] The use of counterweight 644 allows the gas inside the elastic diaphragm 641 and the telescopic folding tube 643 to be squeezed by the weight of counterweight 644 when the solenoid valve is closed and the vent pipe 65 is no longer receiving air. The gas is then transferred to the bottom of the baffle 64 through the vent plate 642, and then to the top of the baffle 64 through the one-way tube, so that the elastic diaphragm 641 and the telescopic folding tube 643 can return to their original shape.

[0062] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A solar energy thermal storage air source heat pump evaporator comprising an evaporator body (1), characterized in that: A solar panel (2) electrically connected to the evaporator body (1) is installed on the back side of the evaporator body (1). An air inlet pipe (4) is connected to the input end of the evaporator body (1), and an air outlet pipe (3) is connected to the output end of the evaporator body (1). A cleaning box (5) is connected to the front end of the air inlet pipe (4). A filter plate (7) is installed on the inner wall of the cleaning box (5). A dust removal unit is installed inside the cleaning box (5). The dust removal unit includes a dust collection frame (63) that fits against the front of the filter plate (7). A cross-sectional area of ​​the dust collection frame (63) is installed through the top wall of the cleaning box (5). 63) For the same block (9), the top of the cleaning box (5) is equipped with a constraint unit (8), and the constraint unit (8) includes a rack plate (81) connected to the outer surface of the block (9). The top surface of the cleaning box (5) is equipped with an L-shaped support rod (82). The tail end of the support rod (82) is connected to a gear (83) that meshes with the rack plate (81) through a bearing. The bottom of the block (9) is provided with a through discharge chute (91). The inner wall of the ash collection frame (63) is slidably connected with a baffle (64). The bottom wall of the ash collection frame (63) is through-installed with a vent pipe (65).

2. A solar energy thermal storage air source heat pump evaporator according to claim 1, characterized in that: The height of the block (9) is greater than the thickness of the top wall of the cleaning box (5). The block (9) has an inverted U-shaped cross section. The surfaces of the gears (83) that are close to each other are fitted with fan blades (84) with fan blades evenly arranged on the surface. The top of the dust collection frame (63) is fitted with an electromagnetic block, and the bottom of the block (9) is fitted with a magnetic coating that has a magnetic attraction effect with the electromagnetic block.

3. The solar thermal storage air source heat pump evaporator according to claim 2, characterized in that: The dust removal unit also includes a servo motor (6) installed in front of the block (9), and the servo motor (6) is electrically connected to the electromagnetic block. The output end of the servo motor (6) is connected to a reciprocating screw (61) located inside the cleaning box (5). A nut is sleeved on the surface of the reciprocating screw (61), and a crossbar (62) is connected to the surface of the nut. The tail end of the crossbar (62) is fixedly connected to the surface of the dust collection frame (63).

4. The solar thermal storage air source heat pump evaporator according to claim 1, characterized in that: The top of the cleaning box (5) is provided with a sinkhole symmetrically arranged about the block (9), and the sinkhole matches the rack plate (81). The depth of the sinkhole is less than the thickness of the top wall of the cleaning box (5).

5. The solar thermal storage air source heat pump evaporator according to claim 3, characterized in that: The surface of the vent pipe (65) is equipped with a solenoid valve, and the solenoid valve is electrically connected to the servo motor (6).

6. The solar thermal storage air source heat pump evaporator according to claim 1, characterized in that: The top of the baffle (64) is fitted with an elastic diaphragm (641) with an arc-shaped cross section. A breathable plate (642) is embedded through the inside of the baffle (64). At the center of the top of the breathable plate (642), telescopic folding tubes (643) with their tail ends connected to the inner surface of the elastic diaphragm (641) are installed at equal intervals. A one-way tube located outside the elastic diaphragm (641) is installed through the inside of the baffle (64).

7. The solar thermal storage air source heat pump evaporator according to claim 6, characterized in that: The width of the projection of the elastic diaphragm (641) onto the surface of the baffle (64) is less than the cross-sectional width of the baffle (64), and the elastic diaphragm (641) is made of a highly elastic material.

8. The solar thermal storage air source heat pump evaporator according to claim 6, characterized in that: The top of the elastic diaphragm (641) is fixedly connected to a counterweight (644), and the length of the counterweight (644) is the same as the length of the elastic diaphragm (641).

9. A method of using the solar thermal storage air source heat pump evaporator according to claim 1, characterized in that, The work includes the following steps: S1. When the evaporator body (1) is working, the outside air is first intercepted and processed by the cleaning box (5) and then enters the evaporator body (1) through the air inlet pipe (4). At the same time, the solar panel (2) transmits the electricity converted by photoelectric conversion to the inside of the evaporator body (1). S2. Using the dust removal unit, the blockage debris on the surface of the filter plate (7) can be cleaned and transferred to the inside of the dust collection frame (63); S3. When the dust collection frame (63) moves up to the bottom of the block (9), as the dust collection frame (63) continues to move up, it drives the block (9) to move up. At the same time, the ventilation pipe (65) is opened, and the baffle (64) inside the dust collection frame (63) moves up under the action of wind force and pushes the dust accumulated inside the dust collection frame (63) upward. S4. The dust collection frame (63) drives the block (9) to continue moving upward until the discharge chute (91) exposes the top of the cleaning box (5). Under the action of the baffle (64) moving upward, the accumulated dust can be discharged from the inside of the cleaning box (5) through the discharge chute (91). S5. The dust collection frame (63) moves down, and the block (9) moves down simultaneously to seal the top of the cleaning box (5).

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