An energy-saving low-temperature efficient utilization device

Abstract

The present invention discloses an energy-saving low-temperature efficient utilization device related to the technical field of heat pump systems. It includes: a housing, in which a compressor, a plate heat exchanger, an expansion valve and a condenser are installed, and fins are provided on the condenser; a fan, installed on the housing; a main electric slide rail, installed on the housing, two sliders are provided on the main electric slide rail, a secondary electric slide rail is fixedly connected to the slider on the main electric slide rail, a slider is provided on the secondary electric slide rail, an installation block is fixedly connected to the slider on the secondary electric slide rail, two installation blocks are jointly rotatably connected to an installation shaft, and a plurality of annular brushes are fixedly connected to the installation shaft. The present invention uses the annular brushes to penetrate between adjacent fins of the condenser, clean the impurities adhered to the fins, keep the condenser clean, ensure the heat exchange efficiency between the condenser and the gas, at the same time reduce the corrosion degree of the impurities on the condenser, and extend the service life of the condenser.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pump systems, and particularly to an energy-saving low-temperature efficient utilization device. Background Art

[0002] A carbon dioxide heat pump is a mechanical device that uses natural carbon dioxide as a working medium and forces heat to flow from a low-temperature object to a high-temperature object in a reverse Carnot cycle. According to the heat source classification, it can be divided into: air-source heat pump, water-source heat pump, and ground-source heat pump. Among them, the water-source heat pump can not only exchange heat with groundwater, but also exchange heat with low-temperature wastewater generated in fields such as mine operations and chemical production. On the one hand, it realizes the recovery of low-temperature heat energy, improves energy utilization efficiency and reduces thermal pollution to the environment. On the other hand, it can reduce the influence of the external environmental temperature on the heat pump unit.

[0003] During the operation of the existing water-source heat pump, the high-temperature and high-pressure carbon dioxide working medium is usually transported into the condenser, and the fan is used to drive the gas to pass through the condenser, and the carbon dioxide working medium in the condenser exchanges heat with the external gas, and then hot air is output; in the above cycle, since the external gas directly passes through the condenser, as the use time increases, impurities gradually adhere to the surface of the condenser, resulting in a decrease in the heat exchange efficiency between the condenser and the gas. At the same time, the long-term accumulated impurities will corrode the condenser and shorten the service life of the condenser. Summary of the Invention

[0004] The present invention provides an energy-saving low-temperature efficient utilization device to overcome the disadvantages that during the use of the existing heat pump, impurities adhere to the surface of the condenser, resulting in a decrease in heat exchange efficiency, and at the same time, the impurities corrode the condenser and shorten the service life of the condenser.

[0005] The technical solution is: an energy-saving low-temperature efficient utilization device, comprising:

[0006] A housing, in which a compressor, a plate heat exchanger, an expansion valve, and a condenser are installed. Fins are provided on the condenser. The compressor, the plate heat exchanger, the expansion valve, and the condenser together form a heat pump system;

[0007] A fan, installed in the housing near the condenser, and a diversion member is fixedly connected in the housing;

[0008] A main electric slide rail, installed in the housing near the condenser. Two sliders are provided on the main electric slide rail. A sub-electric slide rail is fixedly connected to the slider on the main electric slide rail. A slider is provided on the sub-electric slide rail. An installation block is fixedly connected to the slider on the sub-electric slide rail. The two installation blocks are jointly rotatably connected to an installation shaft. A plurality of annular brushes are fixedly connected to the installation shaft. The annular brushes are used to clean the sides of the fins on the condenser.

[0009] Furthermore, it further includes:

[0010] A rack, fixedly connected to the auxiliary electric slide rail on one side. A one-way ring is installed at a position of the mounting shaft close to the rack and is rotatably connected to a gear. The gear meshes with the rack, and a torsion spring is fixedly connected between the one-way ring and the gear.

[0011] Furthermore, it further includes:

[0012] A collection shell, fixedly connected to the mounting block on the side away from the rack. The mounting shaft passes through the collection shell, and all the annular brushes are located inside the collection shell;

[0013] A plurality of collision bars, all fixedly connected inside the collection shell. The collision bars are used to collide with the annular brushes.

[0014] Furthermore, an air pump is fixedly connected to the lower side of the collection shell, and the air inlet of the air pump is communicated with the inside of the collection shell. The air outlet of the air pump faces the condenser, and a rotary part is arranged inside the collection shell.

[0015] Furthermore, it further includes:

[0016] A connecting frame, which is limited and slidably connected to the collection shell;

[0017] Extrusion rings, the number of which is half of the number of the annular brushes, are all fixedly connected to one side of the connecting frame close to the mounting shaft. An extrusion part is arranged on the extrusion ring. The number of the annular brushes is even, and all the annular brushes are located in pairs in the gaps between adjacent fins of the condenser. The maximum distance of the part of each pair of annular brushes that does not contact the extrusion part in the direction of its central axis is less than the gap between adjacent fins of the condenser. The extrusion rings are located between two adjacent annular brushes in a group, and the extrusion part is used to extrude the adjacent annular brushes, so as to increase the extrusion force of the annular brushes on the adjacent fins of the condenser.

[0018] Furthermore, the connecting frame is threadedly connected with an adjusting knob, the adjusting knob contacts the collection shell, and a tension spring is fixedly connected between the connecting frame and the collection shell.

[0019] Furthermore, it further includes:

[0020] A speed sensor, installed on the mounting block close to the one-way ring side. The speed sensor is used to monitor the rotation speed of the one-way ring;

[0021] A limiting elastic piece, fixedly connected to the side of the one-way ring close to the gear. A limiting groove is arranged inside the gear, and the one-way ring is limited by the limiting elastic piece through the limiting groove.

[0022] A trimming assembly is disposed inside the collection housing and is used to trim the deformed fins on the condenser.

[0023] Furthermore, the trimming assembly includes:

[0024] An electric push rod is fixedly connected inside the collection housing;

[0025] A fixing block is fixedly connected to the telescopic end of the electric push rod. A plurality of trimming bars are fixedly connected to the side of the fixing block close to the condenser, and the trimming bars are used to squeeze adjacent fins on the condenser.

[0026] Furthermore, the position of the trimming bar away from the fixing block bends downward.

[0027] Furthermore, it further includes:

[0028] A limiting frame is slidably connected to all the trimming bars. An elastic strip is fixedly connected inside the collection housing. The limiting frame is used to squeeze the elastic strip, and a spring is fixedly connected between the limiting frame and the fixing block;

[0029] An L-shaped block is fixedly connected to the fixing block and contacts the limiting frame.

[0030] The advantages and positive effects of the present invention compared with the prior art are as follows: The present invention uses a circular brush to penetrate between adjacent fins of the condenser and clean the impurities adhered to the fins, keeping the condenser clean, ensuring the heat exchange efficiency between the condenser and the gas, reducing the corrosion degree of the impurities on the condenser, and prolonging the service life of the condenser; The circular brush is driven to rotate by a rack and a gear, reducing the probability of impurities accumulating during the cleaning process of the condenser fins by the circular brush, and further reducing the probability of the impurities scratching the surface of the condenser fins during the cleaning process of the condenser; The extrusion ring is used to squeeze the part of the circular brush located in the gap between two adjacent fins so that the circular brush contacts the adjacent fins, which is convenient for the circular brush to enter the gap between adjacent fins on the condenser, reducing the probability of the circular brush colliding with the adjacent fins on the condenser and prolonging the service life of the circular brush; The rotation speed of the one-way ring is monitored by a speed sensor, so as to obtain the resistance suffered by the circular brush during rotation, and then judge the deformation condition of the fins. After detecting the deformation of the fins, the trimming bars are used to squeeze the fins to "flatten" the fins and keep the ventilation area of the fins unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 2 It is a three-dimensional structural schematic diagram of the expansion valve, condenser and fan of the present invention;

[0033] Figure 3 Schematic three-dimensional structure diagram of the housing and the main electric slide rail of the present invention;

[0034] Figure 4 Schematic three-dimensional structure diagram of the collection shell and the connecting frame of the present invention;

[0035] Figure 5 Schematic three-dimensional structure diagram of the mounting block and the annular brush of the present invention;

[0036] Figure 6 Schematic three-dimensional structure diagram of the mounting shaft and the one-way ring of the present invention;

[0037] Figure 7 Schematic three-dimensional structure diagram of the condenser and the annular brush of the present invention;

[0038] Figure 8 Schematic three-dimensional structure diagram of the collision bar and the air pump of the present invention;

[0039] Figure 9 Schematic three-dimensional structure diagram of the connecting frame and the extrusion ring of the present invention;

[0040] Figure 10 Schematic three-dimensional structure diagram of the annular brush and the extrusion ring of the present invention;

[0041] Figure 11 Exploded view of the one-way ring and the gear of the present invention;

[0042] Figure 12 Schematic three-dimensional structure diagram of the fixing block and the trimming strip of the present invention;

[0043] Figure 13 Schematic three-dimensional structure diagram of the limiting frame and the elastic strip of the present invention.

[0044] Wherein: 1 - housing, 2 - compressor, 3 - plate heat exchanger, 4 - expansion valve, 5 - condenser, 6 - fan, 7 - drainage member, 8 - main electric slide rail, 9 - auxiliary electric slide rail, 10 - mounting block, 11 - mounting shaft, 12 - annular brush, 13 - rack, 14 - one-way ring, 15 - gear, 16 - collection shell, 17 - collision bar, 18 - air pump, 181 - rotating part, 19 - connecting frame, 20 - extrusion ring, 201 - extrusion part, 21 - adjustment knob, 22 - speed sensor, 23 - limiting elastic piece, 231 - limiting groove, 24 - electric push rod, 25 - fixing block, 26 - trimming strip, 27 - limiting frame, 28 - elastic strip, 29 - L-shaped block. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0046] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0047] An energy-saving type low-temperature high-efficiency utilization device, please refer to Figures 1-6 , including: a housing 1, a compressor 2, a plate heat exchanger 3, an expansion valve 4 and a condenser 5 are installed in the housing 1. Fins are provided on the condenser 5. The compressor 2, the plate heat exchanger 3, the expansion valve 4 and the condenser 5 together form a heat pump system; a fan 6 is installed inside the housing 1 near the condenser 5, and a diversion member 7 is fixedly connected inside the housing 1; a main electric slide rail 8 is installed inside the housing 1 near the condenser 5. There are two sliders on the main electric slide rail 8. A slider on the main electric slide rail 8 is fixedly connected with a secondary electric slide rail 9. There is a slider on the secondary electric slide rail 9. A slider on the secondary electric slide rail 9 is fixedly connected with a mounting block 10. Two mounting blocks 10 are jointly rotatably connected with a mounting shaft 11. A plurality of annular brushes 12 are fixedly connected to the mounting shaft 11. The annular brushes 12 are used to clean the sides of the fins on the condenser 5.

[0048] In the above solution, it aims to solve the problem that during the use of the existing water source heat pump, impurities will adhere to the surface of the condenser 5, resulting in a reduction in the heat exchange efficiency between the condenser 5 and the gas, and at the same time, the impurities cause corrosion to the condenser 5. In this solution, the annular brushes 12 are used to penetrate between adjacent fins of the condenser 5 and clean the impurities adhering to the fins, keeping the condenser 5 clean, ensuring the heat exchange efficiency between the condenser 5 and the gas, and at the same time reducing the corrosion degree of the impurities to the condenser 5; a water inlet pipe and a water outlet pipe are provided on the plate heat exchanger 3, and both the water inlet pipe and the water outlet pipe of the plate heat exchanger 3 pass through the housing 1 and are connected to the external low-temperature waste water pipe; a plurality of through holes are provided at the rear side of the upper part of the housing 1. On the one hand, these through holes can enable external gas to enter the housing 1 and exchange heat with the carbon dioxide working medium (hereinafter simply referred to as the working medium) in the condenser 5, and on the other hand, prevent large-volume external impurities from entering the housing 1; the fan 6 is located between the condenser 5 and the diversion member 7; the main electric slide rail 8 is located at the rear side of the condenser 5 (the amount of impurities adhered to the rear side of the condenser 5 is large under the action of the fan 6, and the external gas passes through the housing 1 from back to front).

[0049] The bristles on the annular brush 12 are made of elastic non-metallic material and are not easy to scratch the fins of the condenser 5; the number of the annular brushes 12 can be changed according to the actual situation. In this article, the number of the annular brushes 12 is ten, and they are located in pairs in the gaps between two adjacent fins of the condenser 5; a control terminal is installed in the housing 1, and both the main electric slide rail 8 and the auxiliary electric slide rail 9 are electrically connected to the control terminal.

[0050] Please refer to Figures 4-7 , and further includes: a rack 13, fixedly connected to the auxiliary electric slide rail 9 on one side, a one-way ring 14 is installed at a position of the mounting shaft 11 close to the rack 13 and is rotatably connected with a gear 15. The gear 15 meshes with the rack 13, and a torsion spring is fixedly connected between the one-way ring 14 and the gear 15.

[0051] In the above solution, it aims to solve the problem that when using a brush to move along the fins of the condenser 5 to clean the condenser 5, the impurities adhering to the surface of the fins accumulate on the brush. Subsequently, when the brush moves along the fins, the brush drives the hard particle impurities accumulated on it to scratch the fins, affecting the flatness of the fins and even damaging the surface coating of the fins, resulting in a reduction in the service life of the fins; in this solution, the rack 13 and the gear 15 are used to drive the annular brush 12 to rotate, reducing the probability of impurities accumulating during the process of cleaning the fins of the condenser 5 by the annular brush 12, and further reducing the probability of the impurities scratching the surface of the fins of the condenser 5 during the cleaning process; the structure between the one-way ring 14 and the mounting shaft 11 can be a ratchet and pawl structure, enabling the mounting shaft 11 to rotate counterclockwise under the drive of the one-way ring 14 (the direction in this article is Figure 1 used as a reference, and at the same time, the rotation perspective of this article is from right to left).

[0052] Please refer to Figure 4 , Figure 5 and Figure 8 , and further includes: a collection shell 16, a mounting block 10 fixedly connected to the side away from the rack 13, the mounting shaft 11 passes through the collection shell 16, and all the annular brushes 12 are located inside the collection shell 16; a plurality of collision bars 17, all fixedly connected inside the collection shell 16, and the collision bars 17 are used to collide with the annular brushes 12; an air pump 18 is fixedly connected to the lower side of the collection shell 16, and the air inlet of the air pump 18 is communicated with the inside of the collection shell 16, the air outlet of the air pump 18 faces the condenser 5, and a rotating part 181 is arranged inside the collection shell 16.

[0053] In the above solution, it is intended to use the collection housing 16 to collect the impurities adhering to the annular brush 12; the collision bars 17 are U-shaped, and the number of the collision bars 17 can be changed according to the actual situation (here the number of the collision bars 17 is four), and the middle part of the collision bars 17 is used for the impurities falling into the collection housing 16 to slide along the inner side surface of the collection housing 16; an arc surface is arranged at the lower rear side inside the collection housing 16, and the axis of the arc surface is collinear with the central axis of the mounting shaft 11. The four collision bars 17 are evenly distributed on the arc surface of the collection housing 16. A filter screen is arranged at the air inlet of the air pump 18, and the filter screen is used to prevent the impurities in the collection housing 16 from entering the air pump 18; the air inlet of the air pump 18 faces the upper rear side, and is used to adsorb and guide the impurities falling into the collection housing 16, so that the impurities finally accumulate at the rotating part 181.

[0054] The working principle of the above solution is as follows: When the water source heat pump works, the compressor 2 and the fan 6 are started. The fan 6 guides the outside air to flow from the rear to the front, so that the air sequentially passes through the through holes in the upper part of the housing 1, the condenser 5 and the drainage member 7; the working medium circulates between the plate heat exchanger 3, the compressor 2, the condenser 5 and the expansion valve 4, transfers the heat in the low-temperature waste water to the air passing through the condenser 5, and finally the heated air is discharged through the drainage member 7; during the process of the air passing through the condenser 5, the impurities carried in the air adhere to the fin surface of the condenser 5, reducing the heat exchange efficiency between the condenser 5 and the air.

[0055] The steps for cleaning the condenser 5 are as follows: After the device runs for a specified time (here the specified time is determined according to the impurity content of the use place), the control terminal starts the two sub-electric slide rails 9 and the air pump 18. The sliders on the two sub-electric slide rails 9 move downward together and drive the mounting shaft 11 to move downward through the mounting block 10. The mounting shaft 11 drives the one-way ring 14 and the gear 15 to move downward. The gear 15 rotates counterclockwise under the action of the rack 13. The gear 15 drives the one-way ring 14 to rotate through the adjacent torsion springs. The one-way ring 14 drives the mounting shaft 11 and all the annular brushes 12 to rotate counterclockwise together. Relative sliding occurs between the annular brush 12 and the adjacent fins on the condenser 5, and the impurities adhering to the fin surface are cleaned; after the air pump 18 is started, the air inlet of the air pump 18 sucks air, reducing the air pressure inside the collection housing 16, so that the air in the fin gaps of the condenser 5 enters the collection housing 16, reducing the probability that the impurities are sucked into the front side of the condenser 5 by the fan 6 during the process of the annular brush 12 cleaning the impurities, and maintaining the cleanliness of the air discharged from the drainage member 7.

[0056] When the annular brush 12 rotates to clean the impurities adhering to the fins of the condenser 5, a part of the impurities adhere to the surface of the annular brush 12. As the annular brush 12 rotates, the bristles on the annular brush 12 collide with the collision bar 17, causing the bristles of the annular brush 12 to vibrate and the impurities adhering to it to fall off, thus cleaning the annular brush 12. At the same time, the impurities falling off from the annular brush 12 slide along the inner side of the collection shell 16 and accumulate at the rotating part 181 under the guidance of the air extraction airflow of the air pump 18, thus completing the collection of the impurities. As the mounting shaft 11 moves downward, until the slider on the secondary electric slide rail 9 moves to the lower limit position (i.e., the lowest point where the slider can be on the secondary electric slide rail 9), the annular brush 12 completes the cleaning of the adjacent fins on the condenser 5. The secondary electric slide rail 9 controls the upward movement of the slider on it. At the same time, the main electric slide rail 8 starts and makes the two sliders on it move leftward together. The sliders on the main electric slide rail 8 drive the two secondary electric slide rails 9 to move together, causing the mounting shaft 11 to move upward and leftward. During this process, the annular brush 12 gradually disengages from the gap between two adjacent fins on the condenser 5. The gear 15 slides along the rack 13, and the gear 15 drives the one-way ring 14 to rotate clockwise (at this time, the one-way ring 14 cannot drive the mounting shaft 11 to rotate). Finally, the slider on the secondary electric slide rail 9 moves back to its upper limit position (i.e., the highest point where the slider can be on the secondary electric slide rail 9), and the annular brush 12 re-enters the gap between two adjacent fins on the condenser 5. At the same time, the fin on the condenser 5 that was originally in contact with the leftmost annular brush 12 comes into contact with the rightmost annular brush 12. At this time, the main electric slide rail 8 stops, and the above steps of the annular brush 12 rotating and moving downward are repeated to clean the fins of the condenser 5 in sequence. Until all the fins at the rear of the condenser 5 are cleaned, the sliders on the main electric slide rail 8 and the secondary electric slide rail 9 are reset, and the main electric slide rail 8, the secondary electric slide rail 9 and the air pump 18 are stopped. After cleaning the fins several times (the specific number here is determined according to the impurity content in the usage scenario of this device), the staff cleans the impurities accumulated at the rotating part 181.

[0057] Please refer to Figure 9 and Figure 10, further comprising: a connecting frame 19, which is connected to the collecting housing 16 in a limited sliding manner; extrusion rings 20, the number of which is half of that of the annular brushes 12, are fixedly connected to one side of the connecting frame 19 close to the mounting shaft 11. An extrusion portion 201 is provided on the extrusion ring 20. The number of the annular brushes 12 is an even number, and all the annular brushes 12 are located in pairs in the gaps between two adjacent fins on the condenser 5. The maximum distance in the central axis direction of the portion of each pair of annular brushes 12 that does not contact the extrusion portion 201 is less than the gap between two adjacent fins on the condenser 5. The extrusion ring 20 is located between two paired annular brushes 12. The extrusion portion 201 is used to extrude the adjacent annular brushes 12, so as to increase the extrusion force of the annular brushes 12 on the adjacent fins of the condenser 5; the connecting frame 19 is threadedly connected with an adjusting knob 21, the adjusting knob 21 contacts the collecting housing 16, and a tension spring is fixedly connected between the connecting frame 19 and the collecting housing 16.

[0058] In the above solution, it is intended to use the extrusion ring 20 to extrude the portion of the annular brush 12 located in the gap between two adjacent fins so that the annular brush 12 contacts the adjacent fins, which is convenient for the annular brush 12 to enter the gap between two adjacent fins on the condenser 5, reduces the probability of collision between the annular brush 12 and the adjacent fins on the condenser 5, and prolongs the service life of the annular brush 12; in the direction of the central axis of the mounting shaft 11, the width of the extrusion ring 20 is less than the distance between two adjacent annular brushes 12, and the width of the extrusion portion 201 is greater than the distance between two adjacent annular brushes 12. In the process of cleaning the fins by using the annular brush 12, the bristles of the annular brush 12 that do not contact the extrusion portion 201 do not contact the adjacent fins on the condenser 5, and the bristles of the annular brush 12 that contact the extrusion portion 201 are bent and contact the adjacent fins on the condenser 5. On the one hand, this enables the annular brush 12 to enter the gap between two adjacent fins without contacting the adjacent fins, reduces the probability of collision between the annular brush 12 and the fins, and prolongs the service life of the annular brush 12 and the fins. On the other hand, the extrusion portion 201 is used to squeeze the bristles of the annular brush 12 to bend, ensuring the stability of the extrusion force between the annular brush 12 and the fins when the annular brush 12 cleans the fins, and thus ensuring the cleaning efficiency of the annular brush 12 for the fins; the adjusting knob 21 is used to control the distance between the extrusion portion 201 and the central axis of the annular brush 12. The smaller the above distance is, the greater the bending amplitude of the bristles of the annular brush 12 that contact the extrusion portion 201 is, that is, the greater the extrusion force of the annular brush 12 on the fins is. In actual use, the position of the adjusting knob 21 can be adjusted according to the type of impurities in the scene where the device is located. For example, when the impurities adhering to the fins are not easy to clean, the distance between the extrusion portion 201 and the central axis of the annular brush 12 can be appropriately reduced, thereby increasing the extrusion force of the annular brush 12 on the fins and improving the cleaning efficiency of the annular brush 12 for the impurities on the fins.

[0059] Please refer toFigure 5 , Figure 6 , Figure 11 and Figure 12 , further comprising: a speed sensor 22, mounted on a mounting block 10 near one side of the one-way ring 14, the speed sensor 22 being used to monitor the rotation speed of the one-way ring 14; a limiting elastic piece 23, fixedly connected to one side of the one-way ring 14 close to the gear 15, a limiting groove 231 is arranged in the gear 15, and the limiting elastic piece 23 limits the one-way ring 14 through the limiting groove 231; a trimming assembly, arranged in the collecting shell 16, for trimming the deformed fins on the condenser 5; the trimming assembly includes: an electric push rod 24, fixedly connected in the collecting shell 16; a fixed block 25, fixedly connected to the telescopic end of the electric push rod 24, a plurality of trimming strips 26 are fixedly connected to one side of the fixed block 25 close to the condenser 5, and the trimming strips 26 are used to squeeze adjacent fins on the condenser 5; the position of the trimming strip 26 away from the fixed block 25 is bent downward.

[0060] In the above solution, it aims to solve the problem that the fins of the existing condenser 5 are bent due to being impacted by external hard objects (such as stones, branches, hail, etc.) during use, resulting in a reduction in the gap between adjacent fins on the condenser 5, a decrease in the air flow area of the condenser 5, and an impact on the heat exchange efficiency of the condenser 5; in this solution, the speed sensor 22 monitors the rotation speed of the one-way ring 14, and then obtains the resistance suffered by the annular brush 12 during its self-rotation. When the resistance suffered by the annular brush 12 is large, it can be judged that the fins at the position of the annular brush 12 are bent, so as to achieve the purpose of monitoring the flatness of the fins; initially, the limiting elastic piece 23 is located in the adjacent limiting groove 231, and at this time, there is no torsional force in the adjacent torsion springs of the one-way ring 14; the shape of the limiting elastic piece 23 is V-shaped, and only one side of the limiting elastic piece 23 is fixedly connected to the one-way ring 14, and the other side of the limiting elastic piece 23 is in contact with the one-way ring 14; the trimming strip 26 is made of elastic metal material, and uses the elastic reset trend after the trimming strip 26 enters the gap between adjacent fins to "smooth out" the bent part of the fins; the position of the trimming strip 26 away from the fixed block 25 is bent downward, so that the front end of the trimming strip 26 is in an inclined state. In this way, when the front end of the trimming strip 26 contacts the side of the fin and moves downward, the front end of the trimming strip 26 guides the bent position of the fin to deform backward, making the process of the trimming strip 26 squeezing the bent position of the fin smoother; there can be two limiting elastic pieces 23 distributed symmetrically about the center, and the number of the limiting grooves 231 is equal to that of the limiting elastic pieces 23.

[0061] Please refer to Figure 12 and Figure 13 , further comprising: a limiting frame 27, slidably connected to all the trimming strips 26, an elastic strip 28 is fixedly connected in the collecting shell 16, the limiting frame 27 is used to squeeze the elastic strip 28, and a spring is fixedly connected between the limiting frame 27 and the fixed block 25; an L-shaped block 29, fixedly connected to the fixed block 25 and in contact with the limiting frame 27.

[0062] In the above solution, it is aimed to use the limiting frame 27 to maintain the extrusion force of the trimming strip 26 on the fin under the elastic reset trend, and at the same time facilitate the insertion of the trimming strip 26 into the gap between adjacent fins; the elastic strip 28 is made of elastic rubber; the L-shaped blocks 29 can be two symmetrically distributed on the left and right.

[0063] The steps of trimming the fins with the trimming strip 26 are as follows: During the process of cleaning the fins with the annular brush 12, the slider on the secondary electric slide rail 9 moves downward at a constant speed. If the annular brush 12 moves to the bent position of the fins, the resistance suffered by the annular brush 12 during self-rotation increases significantly (that is, due to the bending of the fins, the gap between adjacent fins decreases and the annular brush 12 is stuck). This resistance overcomes the force of the deformation of the limiting elastic piece 23, causing the rotation speeds of the mounting shaft 11 and the one-way ring 14 to decrease together. The one-way ring 14 rotates relative to the gear 15, twisting the torsion spring adjacent to the one-way ring 14. At this time, the limiting elastic piece 23 is deformed by being squeezed by the limiting groove 231, so that the thickness of the limiting elastic piece 23 in the central axis direction of the annular brush 12 decreases. Finally, the limiting elastic piece 23 loses contact with the adjacent limiting groove 231, releasing the limitation of the limiting elastic piece 23 on the one-way ring 14. At this time, the speed sensor 22 detects the decrease in the rotation speed of the one-way ring 14 and transmits the signal to the control terminal.

[0064] After the control terminal receives the signal from the speed sensor 22, it controls the telescopic end of the electric push rod 24 to extend. The telescopic end of the electric push rod 24 drives the fixed block 25 and the trimming strip 26 to move forward (at this time, the limit frame 27 remains stationary under the limiting action of the elastic strip 28 and compresses the spring adjacent to the limit frame 27), so that the distance between the trimming strip 26 and the condenser 5 gradually decreases. During this process, the length of the trimming strip 26 located in front of the limit frame 27 gradually increases, reducing the force required to bend the trimming strip 26 and facilitating the insertion of the trimming strip 26 into the gap between adjacent fins. As the trimming strip 26 moves forward, the trimming strip 26 gradually inserts into the gap between adjacent fins. At this time, the front end of the trimming strip 26 contacts the side surface of the adjacent fin; the spring between the fixed block 25 and the limit frame 27 is compressed to the limit. At this time, the elastic force of the spring adjacent to the fixed block 25 is greater than the force that deforms the elastic strip 28. The limit frame 27 squeezes the elastic strip 28 to deform and move forward under the action of its adjacent spring until the limit frame 27 moves past the elastic strip 28, and then the spring adjacent to the fixed block 25 resets; as the trimming strip 26 moves forward, when the positions where the front end of the trimming strip 26 bends are all within the gaps between adjacent fins, the electric push rod 24 is stopped. As the slider on the secondary electric slide rail 9 moves downward, the trimming strip 26 "smoothes" the adjacent fins. When the annular brush 12 moves out of the deformation range of the fins, the resistance received by the annular brush 12 decreases. At this time, the one-way ring 14 quickly resets under the action of the adjacent torsion spring. The speed sensor 22 detects that the rotation speed of the one-way ring 14 returns to normal and transmits the signal to the control terminal. The control terminal waits for a period of time (the length of this period is equal to the time required to move the distance between the fixed block 25 and the mounting shaft 11 at the moving speed of the slider on the secondary electric slide rail 9) and then controls the telescopic end of the electric push rod 24 to contract. The telescopic end of the electric push rod 24 drives the fixed block 25 to move backward. The fixed block 25 drives the trimming strip 26 and drives the limit frame 27 to move through the L-shaped block 29, so that the limit frame 27 contacts the elastic strip 28 and squeezes the elastic strip 28 to deform. Finally, the fixed block 25, the trimming strip 26, the limit frame 27, and the L-shaped block 29 all reset. At this time, the electric push rod 24 is stopped.

[0065] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. An energy-saving low-temperature high-efficiency utilization device, characterized in that: include: A shell, wherein a compressor, a plate heat exchanger, an expansion valve and a condenser are installed in the shell, fins are provided on the condenser, and the compressor, the plate heat exchanger, the expansion valve and the condenser together constitute a heat pump system; A fan is installed in the housing near the condenser, and a flow guide is fixed in the housing; A main electric slide rail is installed in the housing at a position close to the condenser, the main electric slide rail is provided with two sliders, the slider on the main electric slide rail is fixedly connected to the auxiliary electric slide rail, the auxiliary electric slide rail is provided with a slider, the slider on the auxiliary electric slide rail is fixedly connected to a mounting block, the two mounting blocks are connected to a mounting shaft for common rotation, the mounting shaft is fixedly connected to a plurality of annular brushes, and the annular brushes are used to clean the side surfaces of the fins on the condenser; Also includes: A rack is fixedly connected to the auxiliary electric slide rail on one side, a one-way ring is installed at a position of the mounting shaft close to the rack and is rotatably connected to a gear, the gear is meshed with the rack, and a torsion spring is fixedly connected between the one-way ring and the gear; A collecting shell is fixedly connected to the mounting block on a side away from the rack, the mounting shaft passes through the collecting shell, and all the annular brushes are located in the collecting shell; A plurality of collision bars are fixedly connected in the collecting shell, and the collision bars are used to collide with the annular brush; A connecting frame, the connecting frame is limitedly and slidably connected to the collecting shell; Extrusion rings, half the number of which is the annular brushes, are all fixedly connected to a side of the connecting frame close to the mounting shaft. An extrusion portion is provided on the extrusion ring. The number of the annular brushes is an even number, and all the annular brushes are grouped in pairs in the gap between two adjacent fins on the condenser. The maximum distance of the parts of each group of annular brushes that are not in contact with the extrusion portion in the direction of their central axis is smaller than the gap between two adjacent fins on the condenser. The extrusion ring is located between two of the annular brushes in a group, and the extrusion portion is used to extrude adjacent annular brushes to increase the extrusion force of the annular brushes on adjacent fins on the condenser.

2. The energy-saving low-temperature high-efficiency utilization device according to claim 1, characterized in that: An air pump is fixedly connected to the lower side of the collecting shell, and an air inlet of the air pump is communicated with the interior of the collecting shell, an air outlet of the air pump faces the condenser, and a rotating part is arranged inside the collecting shell.

3. The energy-saving low-temperature high-efficiency utilization device according to claim 2 is characterized in that: The connecting frame is threadedly connected with an adjusting knob, the adjusting knob is in contact with the collecting shell, and a tension spring is fixedly connected between the connecting frame and the collecting shell.

4. The energy-saving low-temperature high-efficiency utilization device according to claim 3 is characterized in that: Also includes: A speed sensor is installed on the mounting block close to one side of the one-way ring, and the speed sensor is used to monitor the rotation speed of the one-way ring; A limiting spring piece is fixedly connected to a side of the one-way ring close to the gear, a limiting groove is arranged in the gear, and the limiting spring piece limits the one-way ring through the limiting groove; A trimming assembly is arranged in the collecting shell and is used for trimming deformed fins on the condenser.

5. The energy-saving low-temperature high-efficiency utilization device according to claim 4, characterized in that: The trimming assembly comprises: An electric push rod, fixedly connected in the collecting shell; A fixed block is fixedly connected to the telescopic end of the electric push rod. A side of the fixed block close to the condenser is fixedly connected with a plurality of trimming strips, and the trimming strips are used to squeeze adjacent fins on the condenser.

6. The energy-saving low-temperature high-efficiency utilization device according to claim 5, characterized in that: The trimming strip is bent downward away from the fixing block.

7. The energy-saving low-temperature high-efficiency utilization device according to claim 5, characterized in that: Also includes: A limit frame is slidably connected to all the trimming strips, an elastic strip is fixedly connected in the collecting shell, the limit frame is used to squeeze the elastic strip, and a spring is fixedly connected between the limit frame and the fixing block; The L-shaped block is fixedly connected to the fixing block and contacts the limiting frame.

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