Energy-saving low-temperature efficient utilization device

Abstract

The invention discloses an energy-saving type low-temperature efficient utilization device, and relates to the technical field of heat pump systems. Comprising a shell, a compressor, a plate heat exchanger, an expansion valve and a condenser are installed in the shell, and fins are arranged on the condenser; the fan is arranged on the shell; the main electric sliding rail is installed on the shell, two sliding blocks are arranged on the main electric sliding rail, the sliding block on the main electric sliding rail is fixedly connected with an auxiliary electric sliding rail, a sliding block is arranged on the auxiliary electric sliding rail, the sliding block on the auxiliary electric sliding rail is fixedly connected with an installation block, the two installation blocks are jointly and rotationally connected with an installation shaft, and the installation shaft is fixedly connected with the main electric sliding rail. And the mounting shaft is fixedly connected with a plurality of annular brushes. According to the invention, the annular brush extends into the space between the adjacent fins of the condenser and cleans impurities adhered to the fins, so that the condenser is kept clean, the heat exchange efficiency of the condenser and gas is ensured, the corrosion degree of the impurities to the condenser is reduced, and the service life of the condenser is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of heat pump systems, and in particular to an energy-saving low-temperature high-efficiency utilization device. Background Art

[0002] A carbon dioxide heat pump is a mechanical device that uses natural carbon dioxide as a working fluid and forces heat to flow from a low-temperature object to a high-temperature object in a reverse Carnot cycle. It can be classified according to the heat source into: air source heat pump, water source heat pump and ground source heat pump. The water source heat pump can not only exchange heat with groundwater, but also with low-temperature wastewater generated in mining operations, chemical production and other fields. On the one hand, it can realize low-temperature heat energy recovery, improve energy utilization and reduce thermal pollution to the environment. On the other hand, it can reduce the impact of the external ambient temperature on the heat pump unit.

[0003] During operation, an existing water source heat pump usually delivers high-temperature and high-pressure carbon dioxide working fluid to a condenser, and drives the gas through the condenser through a fan, and uses the carbon dioxide working fluid in the condenser to exchange heat with the external gas, thereby outputting hot air. In the above cycle, since the external gas directly passes through the condenser, impurities gradually adhere to the surface of the condenser as the use time increases, resulting in a decrease in the heat exchange efficiency between the condenser and the gas. At the same time, the impurities accumulated for a long time will corrode the condenser, shortening the service life of the condenser. Summary of the invention

[0004] The present invention provides an energy-saving low-temperature high-efficiency utilization device to overcome the shortcomings of the existing heat pump in which impurities adhere to the condenser surface during use, resulting in reduced heat exchange efficiency, and the impurities corrode the condenser, shortening the service life of the condenser.

[0005] The technical solution is: an energy-saving low-temperature high-efficiency utilization device, comprising: 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 shell at a position close to the condenser. Two sliders are arranged on the main electric slide rail. 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 rotation together. The mounting shaft is fixedly connected to a plurality of annular brushes. The annular brushes are used to clean the sides of the fins on the condenser.

[0006] Furthermore, it also includes: The 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.

[0007] Furthermore, it also includes: A collecting shell, 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 for colliding with the annular brush.

[0008] Furthermore, an air pump is fixedly connected to the lower side of the collecting shell, and the air inlet of the air pump is connected to the inside of the collecting shell, the air outlet of the air pump faces the condenser, and a rotating part is arranged in the collecting shell.

[0009] Furthermore, it also includes: 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.

[0010] Furthermore, 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.

[0011] Furthermore, it 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.

[0012] Furthermore, 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 plurality of trimming strips are fixedly connected to one side of the fixed block close to the condenser. The trimming strips are used to squeeze adjacent fins on the condenser.

[0013] Furthermore, the trimming strip is bent downward away from the fixing block.

[0014] Furthermore, it 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.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are as follows: the present invention uses an annular brush to probe into the space between adjacent fins of the condenser, and cleans the impurities adhered to the fins, so as to keep the condenser clean, ensure the heat exchange efficiency between the condenser and the gas, and reduce the degree of corrosion of the condenser by impurities, thereby extending the service life of the condenser; the annular brush is driven to rotate by a rack and a gear, so as to reduce the probability of impurities being accumulated by the annular brush during the cleaning of the condenser fins, thereby reducing the probability of impurities scratching the surface of the condenser fins during the cleaning of the condenser; the annular brush is contacted with the adjacent fins by squeezing the part of the annular brush located in the gap between two adjacent fins by a squeezing ring, so as to facilitate the annular brush to enter the gap between adjacent fins on the condenser, reduce the probability of the annular brush colliding with adjacent fins on the condenser, and extend the service life of the annular brush; the speed of the one-way ring is monitored by a speed sensor, so as to obtain the resistance suffered by the annular brush during the rotation process, thereby judging the deformation of the fins, and after the deformation of the fins is detected, the fins are squeezed by a trimming strip to "smooth" the fins, so as to keep the ventilation area of ​​the fins unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the expansion valve, condenser and fan of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the housing and the main electric slide rail of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the collecting shell and the connecting frame of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the mounting block and the annular brush of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the installation shaft and the one-way ring of the present invention; Figure 7It is a schematic diagram of the three-dimensional structure of the condenser and the annular brush of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the collision strip and the air pump of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the connecting frame and the extrusion ring of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the annular brush and the extrusion ring of the present invention; Fig.11 An exploded view of the one-way ring and the gear of the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the fixing block and the trimming strip of the present invention; Fig.13 It is a schematic diagram of the three-dimensional structure of the limit frame and the elastic strip of the present invention.

[0017] Wherein: 1-shell, 2-compressor, 3-plate heat exchanger, 4-expansion valve, 5-condenser, 6-fan, 7-drainage piece, 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-collecting shell, 17-collision strip, 18-air pump, 181-rotating part, 19-connecting frame, 20-extrusion ring, 201-extrusion part, 21-adjusting knob, 22-speed sensor, 23-limiting spring 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 DESCRIPTION

[0018] 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.

[0019] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0020] An energy-saving low-temperature high-efficiency utilization device, please refer to Figure 1-Figure 6, including: a shell 1, in which a compressor 2, a plate heat exchanger 3, an expansion valve 4 and a condenser 5 are installed, and fins are arranged on the condenser 5. The compressor 2, the plate heat exchanger 3, the expansion valve 4 and the condenser 5 together constitute a heat pump system; a fan 6, which is installed in the shell 1 at a position close to the condenser 5, and a drainage piece 7 is fixedly connected in the shell 1; a main electric slide rail 8, which is installed in the shell 1 at a position close to the condenser 5, and two sliders are arranged on the main electric slide rail 8, and the slider on the main electric slide rail 8 is fixedly connected to a secondary electric slide rail 9, and a slider is arranged on the secondary electric slide rail 9, and the slider on the secondary electric slide rail 9 is fixedly connected to a mounting block 10, and the two mounting blocks 10 are connected to a mounting shaft 11 for rotation together, and a plurality of annular brushes 12 are fixedly connected to the mounting shaft 11, and the annular brush 12 is used to clean the side of the fins on the condenser 5.

[0021] In the above scheme, it is intended 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, causing the heat exchange efficiency between the condenser 5 and the gas to be reduced, and the impurities will corrode the condenser 5; this scheme uses an annular brush 12 to penetrate between the adjacent fins of the condenser 5, and clean the impurities adhered to the fins to keep the condenser 5 clean, ensure the heat exchange efficiency between the condenser 5 and the gas, and reduce the degree of corrosion of the condenser 5 by impurities; the plate heat exchanger 3 is provided with a water inlet pipe and a water outlet pipe, and the inlet of the plate heat exchanger 3 is The water pipe and the outlet pipe are both connected to the external low-temperature wastewater pipeline after passing through the shell 1; a plurality of through holes are arranged on the rear side of the upper part of the shell 1, which can allow external gas to enter the shell 1 and exchange heat with the carbon dioxide working medium (hereinafter referred to as the working medium) in the condenser 5 on the one hand, and prevent large-volume impurities from entering the shell 1 on the other hand; the fan 6 is located between the condenser 5 and the drainage piece 7; the main electric slide rail 8 is located on the rear side of the condenser 5 (the external gas passes through the shell 1 from the back to the front under the action of the fan 6, and the amount of impurities adhered to the rear side of the condenser 5 is large).

[0022] 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 annular brushes 12 can be changed according to actual conditions. In this article, the number of annular brushes 12 is ten, and two of them are located in a group in the gap between two adjacent fins on the condenser 5; a control terminal is installed in the shell 1, and the main electric slide rail 8 and the auxiliary electric slide rail 9 are electrically connected to the control terminal.

[0023] Please refer to Figure 4-Figure 7 , and also includes: a rack 13, which is fixed to the auxiliary electric slide rail 9 on one side, a one-way ring 14 is installed on the mounting shaft 11 near the rack 13 and is rotatably connected to a gear 15, the gear 15 is meshed with the rack 13, and a torsion spring is fixed between the one-way ring 14 and the gear 15.

[0024] The above scheme aims to solve the problem that when the brush is used to move along the fins of the condenser 5 to clean the condenser 5, impurities adhering to the surface of the fins accumulate on the brush, and then when the brush moves along the fins, the brush drives the hard granular impurities accumulated on it to scratch the fins, affecting the flatness of the fins and even destroying the coating on the surface of the fins, resulting in a reduction in the service life of the fins; in this scheme, the rack 13 and the gear 15 are used to drive the annular brush 12 to rotate, thereby reducing the probability of impurities accumulating on the annular brush 12 during the process of cleaning the condenser 5 fins, thereby reducing the probability of impurities scratching the surface of the fins of the condenser 5 during the cleaning process; a ratchet pawl structure can be provided between the one-way ring 14 and the mounting shaft 11, so that the mounting shaft 11 can rotate counterclockwise (the direction in this article is denoted by Figure 1 as the basis, and the rotation perspective of this article is from right to left).

[0025] Please refer to Figure 4 , Figure 5 and Figure 8 , and also includes: a collecting shell 16, which is fixedly connected to the mounting block 10 on the side away from the rack 13, and the mounting shaft 11 passes through the collecting shell 16, and all the annular brushes 12 are located in the collecting shell 16; a plurality of collision bars 17, which are all fixedly connected to the collecting 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 collecting shell 16, and the air inlet of the air pump 18 is connected to the inside of the collecting shell 16, and the air outlet of the air pump 18 faces the condenser 5, and a rotating part 181 is provided in the collecting shell 16.

[0026] In the above scheme, the purpose is to use the collecting shell 16 to collect impurities adhered to the annular brush 12; the collision bar 17 is U-shaped, and the number of the collision bars 17 can be changed according to actual conditions (the number of collision bars 17 here is four), and the middle part of the collision bar 17 is used for the impurities that fall into the collecting shell 16 to slide along the inner side surface of the collecting shell 16; an arc surface is provided on the lower rear side of the interior of the collecting shell 16, and the axis of the arc surface is colinear with the central axis of the mounting shaft 11, and four collision bars 17 are equidistantly distributed on the arc surface of the collecting shell 16, and a filter is provided at the air inlet of the air pump 18, which is used to prevent impurities in the collecting shell 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 impurities that fall into the collecting shell 16, so that the impurities are finally accumulated at the rotating part 181.

[0027] The working principle of the above scheme is as follows: when the water source heat pump is working, the compressor 2 and the fan 6 are started, and the fan 6 guides the external gas to flow from back to front, so that the gas passes through the through holes on the upper part of the shell 1, the condenser 5 and the guide piece 7 in sequence; the working medium circulates between the plate heat exchanger 3, the compressor 2, the condenser 5 and the expansion valve 4, and the heat in the low-temperature wastewater is transferred to the gas passing through the condenser 5, and finally the heated gas is discharged through the guide piece 7; in the process of the gas passing through the condenser 5, the impurities carried in the gas adhere to the fin surface of the condenser 5, so that the heat exchange efficiency between the condenser 5 and the gas is reduced.

[0028] The steps for cleaning the condenser 5 are as follows: after the device has been running for a specified time (the specified time here is determined by the impurity content of the place of use), the control terminal starts the two auxiliary electric slide rails 9 and the air pump 18, the sliders on the two auxiliary electric slide rails 9 move down together and drive the installation shaft 11 to move down through the installation block 10, the installation shaft 11 drives the one-way ring 14 and the gear 15 to move down, 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 spring, and the one-way ring 14 drives the installation The shaft 11 and all the annular brushes 12 rotate counterclockwise together, and the annular brushes 12 slide relative to the adjacent fins on the condenser 5, and the impurities adhering to the surface of the fins are cleaned; after the air pump 18 is started, the air inlet of the air pump 18 is evacuated to reduce the air pressure inside the collecting shell 16, so that the gas in the gap between the fins of the condenser 5 enters the collecting shell 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 cleaning the impurities by the annular brush 12, thereby maintaining the cleanliness of the gas discharged from the drainage piece 7.

[0029] When the annular brush 12 rotates to clean the impurities adhered 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 cause the impurities adhered to the fins to fall off, thereby cleaning the annular brush 12. At the same time, the impurities falling off the annular brush 12 slide along the inner side of the collecting shell 16 and accumulate at the rotating part 181 under the guidance of the air flow of the air pump 18, thereby completing the cleaning. The collection of impurities, along with the downward movement of the installation shaft 11, until the slider on the auxiliary electric slide rail 9 moves to the lower limit position (that is, the lowest point where the slider can be on the auxiliary electric slide rail 9), the annular brush 12 completes the cleaning of the adjacent fins on the condenser 5, the auxiliary electric slide rail 9 controls the upper slider to move upward, and at the same time the main electric slide rail 8 starts and moves the two sliders on it to the left together, the slider on the main electric slide rail 8 drives the two auxiliary electric slide rails 9 to move together, so that the installation shaft 11 moves to the upper left, during this process, the annular brush 12 gradually moves automatically The gear 15 slides along the rack 13, and the gear 15 drives the one-way ring 14 to rotate clockwise (the one-way ring 14 cannot drive the mounting shaft 11 to rotate at this time). Finally, the slider on the auxiliary electric slide rail 9 moves back to its upper limit position (that is, the highest point that the slider can be on the auxiliary electric slide rail 9), and the annular brush 12 re-enters the gap between the 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 contacts the rightmost annular brush 12. At this time, the main electric slide rail 8 stops, and repeats the steps of the annular brush 12 rotating and moving downward, and cleans the fins of the condenser 5 in turn until all the fins on the rear side of the condenser 5 are cleaned. Then, the slider on the main electric slide rail 8 and the slider on the auxiliary electric slide rail 9 are reset, and the main electric slide rail 8, the auxiliary 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 use scenario of the device), the staff cleans the impurities accumulated at the rotating part 181.

[0030] Please refer to Fig. 9 and Fig.10, and also includes: a connecting frame 19, which is limitedly slidably connected to the collecting shell 16; an extrusion ring 20, which is half the number of the annular brushes 12, is fixedly connected to the side of the connecting frame 19 close to the mounting shaft 11, and 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 groups of two in the gap between two adjacent fins on the condenser 5. The maximum distance of the part of each group of annular brushes 12 that is not in contact with the extrusion portion 201 in the direction of its central axis is less than the gap between two adjacent fins on the condenser 5. The extrusion ring 20 is located between the two annular brushes 12 in the group, and the extrusion portion 201 is used to squeeze the adjacent annular brushes 12, so that the extrusion force of the annular brushes 12 on the adjacent fins on the condenser 5 is increased; the connecting frame 19 is threadedly connected with an adjusting knob 21, the adjusting knob 21 is in contact with the collecting shell 16, and a tension spring is fixedly connected between the connecting frame 19 and the collecting shell 16.

[0031] In the above scheme, the purpose is to use the extrusion ring 20 to extrude the part of the annular brush 12 located in the gap between two adjacent fins so that the annular brush 12 can contact the adjacent fins, so that it is easy for the annular brush 12 to enter the gap between the adjacent fins on the condenser 5, reduce the probability of the annular brush 12 colliding with the adjacent fins on the condenser 5, and extend the service life of the annular brush 12; in the direction of the central axis of the installation shaft 11, the width of the extrusion ring 20 is smaller than the distance between the two adjacent annular brushes 12, and the width of the extrusion part 201 is larger than the distance between the two adjacent annular brushes 12, so that in the process of using the annular brush 12 to clean the fins, the bristles of the annular brush 12 that are not in contact with the extrusion part 201 do not contact the adjacent fins on the condenser 5, and the bristles of the annular brush 12 that are in contact with the extrusion part 201 are bent and contact the adjacent fins on the condenser 5, so that on the one hand, the annular brush 12 enters the gap between the two adjacent fins without contacting the adjacent fins. On the other hand, the bristles on the annular brush 12 are bent by squeezing the annular brush 12 with the squeezing portion 201, which ensures the stability of the squeezing force between the two when the annular brush 12 cleans the fins, thereby ensuring the cleaning efficiency of the annular brush 12 on the fins; the adjusting knob 21 is used to control the distance between the squeezing portion 201 and the central axis of the annular brush 12. When the above distance is smaller, the greater the bending amplitude of the bristles on the annular brush 12 in contact with the squeezing portion 201, that is, the greater the squeezing force of the annular brush 12 on the fins. 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 impurities adhering to the fins are difficult to clean, the distance between the squeezing portion 201 and the central axis of the annular brush 12 can be appropriately reduced, thereby increasing the squeezing force of the annular brush 12 on the fins and improving the cleaning efficiency of the annular brush 12 on the impurities on the fins.

[0032] Please refer to Figure 5 , Figure 6 , Fig.11 and Fig.12 , and also includes: a speed sensor 22, installed on the mounting block 10 near the side of the one-way ring 14, the speed sensor 22 is used to monitor the rotation speed of the one-way ring 14; a limiting spring piece 23, fixedly connected to the side of the one-way ring 14 near the gear 15, a limiting groove 231 is provided in the gear 15, and the limiting spring piece 23 limits the one-way ring 14 through the limiting groove 231; a trimming component, arranged in the collecting shell 16, and used to trim the deformed fins on the condenser 5; the trimming component includes: an electric push rod 24, fixedly connected to the collecting shell 16; a fixed block 25, fixedly connected to the telescopic end of the electric push rod 24, and a plurality of trimming strips 26 are fixedly connected to the side of the fixed block 25 near the condenser 5, and the trimming strips 26 are used to squeeze adjacent fins on the condenser 5; the trimming strips 26 are bent downward away from the fixed block 25.

[0033] In the above scheme, it is intended to solve the problem that the fins of the existing condenser 5 are bent during use due to impact by external hard objects (such as stones, branches, hail, etc.), which reduces the gap between two adjacent fins on the condenser 5, resulting in a reduction in the air circulation area of ​​the condenser 5, affecting the heat exchange efficiency of the condenser 5; in this scheme, the speed sensor 22 is used to monitor the rotation speed of the one-way ring 14, and then the resistance encountered by the annular brush 12 during the rotation process is obtained. When the resistance encountered by the annular brush 12 is large, it can be determined that the fin at the position of the annular brush 12 is bent, thereby achieving the purpose of monitoring the straightness of the fin; initially, the limiting spring 23 is located in the adjacent limiting groove 231, and at this time, there is no torsion spring adjacent to the one-way ring 14. The limiting spring piece 23 is V-shaped, and only one side of the limiting spring piece 23 is fixedly connected to the one-way ring 14, and the other side of the limiting spring piece 23 is in contact with the one-way ring 14; the trimming strip 26 is made of elastic metal material, and the elastic reset tendency of the trimming strip 26 after entering the gap between two adjacent fins is used to "smooth" the bent part of the fin; the trimming strip 26 is bent downward away from the fixed block 25, so that the front end of the trimming strip 26 is inclined, so that 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, so that the process of squeezing the bent position of the fin by the trimming strip 26 is smoother; the limiting spring piece 23 can be two centrally symmetrically distributed, and the number of the limiting grooves 231 is equal to the limiting spring piece 23.

[0034] Please refer to Fig.12 and Fig.13 , and also includes: a limit frame 27, which is slidably connected to all the trimming strips 26, an elastic strip 28 is fixedly connected in the collecting shell 16, the limit frame 27 is used to squeeze the elastic strip 28, and a spring is fixedly connected between the limit frame 27 and the fixed block 25; an L-shaped block 29, which is fixedly connected to the fixed block 25 and contacts with the limit frame 27.

[0035] In the above scheme, the limiting frame 27 is intended to maintain the squeezing force of the trimming strip 26 on the fin under the elastic reset trend, while facilitating the insertion of the trimming strip 26 into the gap between adjacent fins; the elastic strip 28 is made of elastic rubber material; and the L-shaped blocks 29 can be two symmetrically distributed on the left and right.

[0036] The steps of trimming the fins using the trimming strip 26 are as follows: in the process of cleaning the fins using the annular brush 12, the slider on the auxiliary electric slide rail 9 moves downward at a uniform speed. If the annular brush 12 moves to the position where the fins are bent, the resistance encountered by the annular brush 12 during its rotation is greatly increased (that is, due to the bending of the fins, the gap between the two adjacent fins is reduced and the annular brush 12 is stuck). The resistance overcomes the force of the deformation of the limiting spring piece 23, so that the rotation speed of the mounting shaft 11 and the one-way ring 14 is reduced together, and the one-way ring 14 and the gear 15 rotate relative to each other, twisting the torsion spring adjacent to the one-way ring 14. At this time, the limiting spring piece 23 is squeezed and deformed by the limiting groove 231, so that the thickness of the limiting spring piece 23 in the direction of the central axis of the annular brush 12 is reduced, and finally the limiting spring piece 23 loses contact with the adjacent limiting groove 231, releasing the limiting spring piece 23 on the one-way ring 14. At this time, the speed sensor 22 detects the reduction in the rotation speed of the one-way ring 14 and transmits the signal to the control terminal.

[0037] After receiving the signal from the speed sensor 22, the control terminal controls the telescopic end of the electric push rod 24 to extend, and 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 is gradually reduced. In this process, the length of the trimming strip 26 located in front of the limit frame 27 is gradually increased, so that the force required for bending the trimming strip 26 is reduced, which is convenient for inserting the trimming strip 26 In the gap between adjacent fins, as the trimming strip 26 moves forward, the trimming strip 26 is gradually inserted into the gap between adjacent fins, and at this time, the front end of the trimming strip 26 contacts the side of the adjacent fin; the spring between the fixed block 25 and the limit frame 27 is compressed to the limit, and at this time, the elastic force of the adjacent spring of the fixed block 25 is greater than the force that deforms the elastic strip 28. Under the action of its adjacent spring, the limit frame 27 squeezes the elastic strip 28 to deform and move forward until the limit frame 27 passes over the elastic strip 28, and the adjacent spring of the fixed block 25 is reset; as the trimming strip 26 moves forward, the front end of the trimming strip 26 contacts the side of the adjacent fin; the spring between the fixed block 25 and the limit frame 27 is compressed to the limit, and at this time, the elastic force of the adjacent spring of the fixed block 25 is greater than the force that deforms the elastic strip 28. Under the action of its adjacent spring, the limit frame 27 squeezes the elastic strip 28 to deform and move forward, until the limit frame 27 passes over the elastic strip 28, and the adjacent spring of the fixed block 25 is reset; The electric push rod 24 is stopped, and as the slider on the auxiliary electric slide rail 9 moves downward, the trimming strip 26 "smooths" the adjacent fins until the annular brush 12 moves out of the fin deformation range. The resistance of the annular brush 12 is reduced. At this time, the one-way ring 14 is quickly reset under the action of the adjacent torsion spring. The speed sensor 22 detects that the speed of the one-way ring 14 has returned to normal and transmits a signal to the control terminal. The control terminal waits for a period of time (the length of this period of time is The time required to move the distance between the fixed block 25 and the mounting shaft 11 with a moving speed equal to the moving speed of the slider on the secondary electric slide rail 9) is then controlled to retract the telescopic end of the electric push rod 24, and the telescopic end of the electric push rod 24 drives the fixed block 25 to move backward, and 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 with the elastic strip 28 and squeezes the elastic strip 28 to deform, and finally the fixed block 25, the trimming strip 26, the limit frame 27 and the L-shaped block 29 are all reset, and the electric push rod 24 is stopped at this time.

[0038] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An energy-saving low-temperature high-efficiency utilization device, characterized in that: include: A shell (1), wherein a compressor (2), a plate heat exchanger (3), an expansion valve (4) and a condenser (5) are installed in the shell (1), and the condenser (5) is provided with fins, and the compressor (2), the plate heat exchanger (3), the expansion valve (4) and the condenser (5) together constitute a heat pump system; A fan (6) is installed in the housing (1) at a position close to the condenser (5); a flow guide member (7) is fixedly connected in the housing (1); A main electric slide rail (8) is installed in the housing (1) at a position close to the condenser (5), and two sliders are arranged on the main electric slide rail (8), and the slider on the main electric slide rail (8) is fixedly connected to the auxiliary electric slide rail (9), and the auxiliary electric slide rail (9) is provided with a slider, and the slider on the auxiliary electric slide rail (9) is fixedly connected to a mounting block (10), and the two mounting blocks (10) are rotatably connected to a mounting shaft (11), and the mounting shaft (11) is fixedly connected to a plurality of annular brushes (12), and the annular brushes (12) are used to clean the side surfaces of the fins on the condenser (5).

2. The energy-saving low-temperature high-efficiency utilization device according to claim 1, characterized in that: Also includes: A rack (13) is 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 to a gear (15); the gear (15) is meshed with the rack (13); and a torsion spring is fixedly connected between the one-way ring (14) and the gear (15).

3. The energy-saving low-temperature high-efficiency utilization device according to claim 2 is characterized in that: Also includes: A collecting shell (16) fixedly connected to the mounting block (10) at a side away from the rack (13), the mounting shaft (11) passing through the collecting shell (16), and all the annular brushes (12) being located inside the collecting shell (16); A plurality of collision bars (17) are all fixedly connected in the collection shell (16), and the collision bars (17) are used to collide with the annular brush (12).

4. The energy-saving low-temperature high-efficiency utilization device according to claim 3 is characterized in that: An air pump (18) is fixedly connected to the lower side of the collecting shell (16), and an air inlet of the air pump (18) is communicated with the interior of the collecting shell (16), an air outlet of the air pump (18) faces the condenser (5), and a rotating portion (181) is provided inside the collecting shell (16).

5. The energy-saving low-temperature high-efficiency utilization device according to claim 4, characterized in that: Also includes: A connecting frame (19), the connecting frame (19) being connected to the collecting shell (16) in a limited sliding manner; The number of extrusion rings (20) is half of the number of the annular brushes (12), and they are all fixedly connected to a side of the connecting frame (19) close to the mounting shaft (11). The extrusion rings (20) are provided with an extrusion portion (201). The number of the annular brushes (12) is an even number, and all the annular brushes (12) are located in groups of two in the gap between two adjacent fins on the condenser (5). The maximum distance of the parts of each group of the annular brushes (12) that are not in contact with the extrusion portion (201) in the direction of the central axis is smaller than the gap between two adjacent fins on the condenser (5). The extrusion rings (20) are located between the two annular brushes (12) in the group, and the extrusion portion (201) is used to extrude the adjacent annular brushes (12), thereby increasing the extrusion force of the annular brushes (12) on the adjacent fins on the condenser (5).

6. The energy-saving low-temperature high-efficiency utilization device according to claim 5, characterized in that: The connecting frame (19) is threadedly connected to an adjusting knob (21), the adjusting knob (21) is in contact with the collecting shell (16), and a tension spring is fixedly connected between the connecting frame (19) and the collecting shell (16).

7. The energy-saving low-temperature high-efficiency utilization device according to claim 6, characterized in that: Also includes: a speed sensor (22) mounted on the mounting block (10) at a side close to the one-way ring (14), the speed sensor (22) being used to monitor the rotation speed of the one-way ring (14); A limiting spring piece (23) is fixedly connected to a side of the one-way ring (14) close to the gear (15); a limiting groove (231) is provided in the gear (15); and the limiting spring piece (23) limits the one-way ring (14) via the limiting groove (231); A trimming assembly is arranged in the collecting shell (16) and is used to trim deformed fins on the condenser (5).

8. The energy-saving low-temperature high-efficiency utilization device according to claim 7, characterized in that: The trimming assembly comprises: An electric push rod (24) fixedly connected to the collecting shell (16); A fixed block (25) is fixedly connected to the telescopic end of the electric push rod (24); a plurality of trimming strips (26) are fixedly connected to a side of the fixed block (25) close to the condenser (5); the trimming strips (26) are used to squeeze adjacent fins on the condenser (5).

9. The energy-saving low-temperature high-efficiency utilization device according to claim 8, characterized in that: The trimming strip (26) bends downward at a position away from the fixing block (25).

10. The energy-saving low-temperature high-efficiency utilization device according to claim 8, characterized in that: Also includes: a limit frame (27) slidably connected to all the trimming strips (26); an elastic strip (28) is fixedly connected inside the collecting shell (16); the limit frame (27) is used to squeeze the elastic strip (28); and a spring is fixedly connected between the limit frame (27) and the fixing block (25); The L-shaped block (29) is fixedly connected to the fixed block (25) and is in contact with the limiting frame (27).

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