Energy-saving compressor unit

Abstract

The utility model relates to an energy-saving compressor unit, which belongs to the technical field of compressors and comprises a heat storage tank, a transmission case is fixedly mounted at one end of the top of the heat storage tank, a cylinder is fixedly mounted at the other end of the top of the heat storage tank, and a rotating disc is rotatably connected to the inner wall of the transmission case. The air compressor has the advantages that the rotating disc can be driven to rotate through the vector control type frequency converter so as to drive the crank to do circular motion, then the piston body can be pulled to do reciprocating motion in the movable cavity through the piston rod, and therefore air compression can be completed; the vector control type frequency converter adjusts the rotating speed of the permanent magnet synchronous motor according to an instruction of the controller, so that the compressor is kept in the optimal operation state under different loads, energy consumption is reduced, heat of high-temperature gas in exhausted gas can be recycled through the heat exchanger, and the recycled heat is stored in the heat storage tank and used for subsequent heating or other purposes. And therefore, the purpose of recovering heat can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to an energy-saving compressor unit. Background Technology

[0002] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas. It is the heart of a refrigeration system. It draws in low-temperature, low-pressure refrigerant gas through the suction pipe, compresses it by driving a piston through the operation of a motor, and then discharges high-temperature, high-pressure refrigerant gas through the exhaust pipe, providing power for the refrigeration cycle.

[0003] A search revealed a Chinese patent for a low-temperature screw energy-saving compressor unit (authorization announcement number CN220505309U), comprising an assembly frame body, an intake pipe, a screw compressor, a drive motor, a transmission pipe, a liquid storage tank, an air supply pipe, an exhaust fan, an exhaust screen, a noise reduction screen, a controller, and a noise reduction mechanism. This patented technology increases the diffuse reflection of sound waves through diatomaceous earth panels and sound-absorbing panels, causing sound waves to repeatedly reflect within the sound-absorbing holes and preventing them from easily escaping, thus quickly dissipating their energy and enhancing the noise reduction effect. Simultaneously, centrifugal glass wool, sound-absorbing cotton, and glass panels isolate and reduce transmitted noise, resulting in even better noise reduction. A loading and unloading mechanism is incorporated, allowing multiple noise reduction panels to be placed in the center of the assembly frame. Rotating a knob engages bevel gear one with bevel gear two on both sides, and a movable plate moves a limiting plate to limit the movement of the multiple noise reduction panels, thus enabling rapid installation of the multiple noise reduction panels.

[0004] However, the above-mentioned devices still have some drawbacks in actual use. The most obvious one is that most of the mainstream compressors on the market use traditional mechanical structures, which have low energy utilization rates. The heat generated during operation cannot be recovered, resulting in waste and low overall energy efficiency. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the main objective of this utility model is to provide an energy-saving compressor unit.

[0006] The technical solution of this utility model is as follows: an energy-saving compressor unit includes a heat storage tank. A transmission box is fixedly installed at one end of the top of the heat storage tank, and a cylinder is fixedly installed at the other end of the top of the heat storage tank. A rotating disk is rotatably connected to the inner wall of the transmission box, and a crank is rotatably connected to the outer side of the rotating disk. A piston rod is laterally slidably connected inside the cylinder. A movable cavity is opened inside the cylinder, and a piston body is slidably installed inside the movable cavity. An exhaust pipe is fixedly connected to the bottom end of the cylinder. A heat exchanger is fixedly installed at the top of the heat storage tank. A permanent magnet synchronous motor is fixedly installed on one side of the transmission box, and a vector control frequency converter is fixedly installed at the top of the permanent magnet synchronous motor.

[0007] By adopting the above technical solution, the rotary disk can be driven to rotate by the vector control frequency converter, which in turn drives the crank to make circular motion, and then the piston rod can pull the piston body to make reciprocating motion in the moving chamber, thereby completing the compression of gas.

[0008] In a preferred embodiment, the end of the crank away from the rotating disk is fixedly connected to the piston rod, the input end of the heat exchanger is fixedly connected to the exhaust pipe, and the output end of the heat exchanger extends into the interior of the heat storage tank.

[0009] By adopting the above technical solution, power can be transmitted through the coordinated use of the crank, rotating disk, and piston rod.

[0010] In a preferred embodiment, the top of the cylinder is provided with a filter assembly, which includes an air filter intake box fixedly installed on the top of the cylinder. An air filter is fixedly installed at one end of the air filter intake box, and an intake pre-filter is provided at the other end of the air filter intake box.

[0011] By adopting the above technical solution, the air filter can filter impurities in the incoming gas, thereby reducing the accumulation of impurities in the moving chamber and improving the service life of the cylinder.

[0012] In a preferred embodiment, the filter assembly further includes an intake sound insulation box fixedly installed inside the air filter intake box and located on one side of the intake pre-filter. Air holes are provided on both sides of the intake sound insulation box, and flame-retardant sound-absorbing cotton is installed inside the intake sound insulation box.

[0013] By adopting the above technical solution and using flame-retardant sound-absorbing cotton inside the air intake soundproof box, sound waves can be repeatedly reflected in the sound-absorbing holes and are not easily transmitted out, thereby reducing noise pollution.

[0014] In a preferred embodiment, the bottom of the heat storage tank is fixedly connected to both ends of the support frame, and the outside of the heat storage tank is provided with a box, with the support frame placed inside the box.

[0015] By adopting the above technical solution and setting up the support frame, the thermal storage tank can be provided with better support.

[0016] In a preferred embodiment, the input end of the air filter extends into the interior of the intake soundproof box, the output end of the air filter extends into the interior of the movable cavity, and a controller is fixedly installed on the outside of the box.

[0017] By adopting the above technical solution, the filtered gas can be introduced into the interior of the active chamber through the function of the air filter.

[0018] In a preferred embodiment, the output shaft of the permanent magnet synchronous motor extends into the interior of the transmission box and is fixedly connected to the rotation shaft of the rotating disk, and a particle sensor is fixedly installed inside the air filter intake box and on one side of the intake pre-filter.

[0019] By adopting the above technical solution, the rotation of the output shaft of the permanent magnet synchronous motor can drive the rotating disk to rotate.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0021] 1. In this utility model, a vector control inverter drives a rotating disk to rotate, which in turn drives a crank to make circular motion. This, in turn, pulls the piston body to reciprocate within the moving chamber via the piston rod, thereby compressing the gas. Furthermore, the vector control inverter adjusts the speed of the permanent magnet synchronous motor according to the controller's instructions, ensuring the compressor maintains optimal operating conditions under different loads, thus reducing energy consumption. Additionally, the high-temperature gas in the exhaust gas undergoes heat recovery through a heat exchanger. The recovered heat is stored in a heat storage tank for subsequent heating or other uses, thereby achieving the goal of heat recovery, improving heat recovery efficiency, and reducing heat waste.

[0022] 2. In this utility model, by using flame-retardant sound-absorbing cotton in the air intake soundproof box, sound waves can be repeatedly reflected in the sound-absorbing holes and are not easily transmitted out, thereby reducing noise pollution. Attached Figure Description

[0023] Figure 1 This utility model provides an overall perspective view of an energy-saving compressor unit;

[0024] Figure 2 This utility model provides a partial schematic diagram of an energy-saving compressor unit;

[0025] Figure 3 This utility model provides a schematic diagram of a filter assembly for an energy-saving compressor unit;

[0026] Figure 4 This utility model provides an energy-saving compressor unit. Figure 3 Enlarged view of point A in the middle.

[0027] Legend: 1. Heat storage tank; 2. Support frame; 3. Housing; 4. Heat exchanger; 5. Cylinder; 6. Transmission box; 7. Piston rod; 8. Crank; 9. Rotary disc; 10. Piston body; 11. Exhaust pipe; 12. Permanent magnet synchronous motor; 13. Vector control frequency converter; 14. Moving chamber; 15. Air filter intake box; 16. Air filter; 17. Particle sensor; 18. Intake pre-filter; 19. Intake sound insulation box. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] Reference Figure 1-4 An energy-saving compressor unit includes a heat storage tank 1. A transmission box 6 is fixedly installed at one end of the top of the heat storage tank 1, and a cylinder 5 is fixedly installed at the other end of the top of the heat storage tank 1. A rotating disk 9 is rotatably connected to the inner wall of the transmission box 6, and a crank 8 is rotatably connected to the outer side of the rotating disk 9. A piston rod 7 is laterally slidably connected inside the cylinder 5. A movable chamber 14 is opened inside the cylinder 5, and a piston body 10 is slidably installed inside the movable chamber 14. An exhaust pipe 11 is fixedly connected to the bottom end of the cylinder 5. A heat exchanger 4 is fixedly installed at the top of the heat storage tank 1. A permanent magnet synchronous motor 12 is fixedly installed on one side of the transmission box 6, and a vector control frequency converter 13 is fixedly installed at the top of the permanent magnet synchronous motor 12. When the compressor is running, the vector control inverter 13 drives the rotating disk 9 to rotate, which in turn drives the crank 8 to make a circular motion. This, in turn, pulls the piston body 10 to make a reciprocating motion in the moving chamber 14 with the help of the piston rod 7, thereby completing the compression of the gas. The vector control inverter 13 adjusts the speed of the permanent magnet synchronous motor 12 according to the controller's instructions, so that the compressor maintains the optimal operating state under different loads, thereby reducing energy consumption. In addition, the high-temperature gas in the exhaust gas will be recovered through the heat exchanger 4. The recovered heat is stored in the heat storage tank 1 for subsequent heating or other purposes, thereby achieving the purpose of heat recovery, improving heat recovery efficiency, and reducing heat waste.

[0030] Specifically, the end of crank 8 furthest from rotating disc 9 is fixedly connected to piston rod 7; the input end of heat exchanger 4 is fixedly connected to exhaust pipe 11; the output end of heat exchanger 4 extends into the interior of heat storage tank 1; a filter assembly is provided at the top of cylinder 5, including an air filter inlet box 15 fixedly installed at the top of cylinder 5; an air filter 16 is fixedly installed at one end inside the air filter inlet box 15; through the action of air filter 16, impurities in the incoming gas can be filtered to reduce the accumulation of impurities in the moving chamber 14. This improves the service life of cylinder 5. The other end of the air filter intake box 15 is provided with an intake pre-filter 18. The filter assembly also includes an intake sound insulation box 19, which is fixedly installed inside the air filter intake box 15 and located on one side of the intake pre-filter 18. Air holes are provided on both sides of the intake sound insulation box 19. By using flame-retardant sound-absorbing cotton inside the intake sound insulation box 19, sound waves can be repeatedly reflected in the sound-absorbing holes and are not easy to be transmitted, thereby reducing noise pollution. The intake sound insulation box is filled with flame-retardant sound-absorbing cotton.

[0031] Specifically, brackets 2 are fixedly connected to both ends of the bottom of the heat storage tank 1. A box 3 is provided on the outside of the heat storage tank 1. The brackets 2 provide good support for the heat storage tank 1. The brackets 2 are placed inside the box 3. The input end of the air filter 16 extends into the inside of the air intake soundproof box 19, and the output end of the air filter 16 extends into the inside of the movable chamber 14. Through the function of the air filter 16, the filtered gas can be input into the inside of the movable chamber 14. A controller is fixedly installed on the outside of the box 3. The output shaft of the permanent magnet synchronous motor 12 extends into the inside of the transmission box 6 and is fixedly connected to the rotation shaft of the rotating disk 9. The rotation of the output shaft of the permanent magnet synchronous motor 12 can drive the rotating disk 9 to rotate, thereby realizing the transmission of power. A particle sensor 17 is fixedly installed inside the air filter intake box 15 and on one side of the intake pre-filter 18.

[0032] Working principle: First, the operator can start the permanent magnet synchronous motor 12 through the controller. The rotation of the output shaft of the permanent magnet synchronous motor 12 drives the rotating disk 9 to rotate, which in turn drives the crank 8 to make circular motion. This, in turn, pulls the piston body 10 to make reciprocating motion in the moving chamber 14 through the piston rod 7, thereby completing the gas compression. The vector control type frequency converter 13 is electrically connected to the permanent magnet synchronous motor 12. The vector control type frequency converter 13 can adjust the speed of the permanent magnet synchronous motor 12 according to the controller's instructions, so that the compressor maintains the optimal operating state under different loads. This reduces energy consumption, and the high-temperature gas in the exhaust gas will be recovered through the heat exchanger 4. The recovered heat is stored in the heat storage tank 1 for subsequent heating or other purposes, thus achieving the purpose of heat recovery. Furthermore, the air filter 16 can filter impurities in the incoming gas to reduce the accumulation of impurities in the active chamber 14, thereby improving the service life of the cylinder 5. Moreover, the use of flame-retardant sound-absorbing cotton in the intake sound insulation box 19 can make sound waves repeatedly reflect in the silencer holes and not easily transmitted, thereby reducing noise pollution.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0034] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An energy-saving compressor unit, comprising a heat storage tank (1), characterized in that: A transmission box (6) is fixedly installed at one end of the top of the heat storage tank (1), and a cylinder (5) is fixedly installed at the other end of the top of the heat storage tank (1). A rotating disk (9) is rotatably connected to the inner wall of the transmission box (6), and a crank (8) is rotatably connected to the outer side of the rotating disk (9). A piston rod (7) is slidably connected to the inside of the cylinder (5). An active cavity (14) is opened inside the cylinder (5), and a piston body (10) is slidably installed inside the active cavity (14). An exhaust pipe (11) is fixedly connected to the bottom end of the cylinder (5). A heat exchanger (4) is fixedly installed at the top of the heat storage tank (1). A permanent magnet synchronous motor (12) is fixedly installed on one side of the transmission box (6), and a vector control frequency converter (13) is fixedly installed at the top of the permanent magnet synchronous motor (12).

2. The energy-saving compressor unit according to claim 1, characterized in that: The crank (8) is fixedly connected to the piston rod (7) at the end away from the rotating disk (9), the input end of the heat exchanger (4) is fixedly connected to the exhaust pipe (11), and the output end of the heat exchanger (4) extends into the interior of the heat storage tank (1).

3. The energy-saving compressor unit according to claim 1, characterized in that: The top of the cylinder (5) is provided with a filter assembly, which includes an air filter inlet box (15) fixedly installed on the top of the cylinder (5). An air filter (16) is fixedly installed at one end of the air filter inlet box (15), and an air intake pre-filter (18) is provided at the other end of the air filter inlet box (15).

4. The energy-saving compressor unit according to claim 3, characterized in that: The filter assembly also includes an intake sound insulation box (19) which is fixedly installed inside the air filter intake box (15) and located on one side of the intake pre-filter (18). Air holes are provided on both sides of the intake sound insulation box (19), and flame-retardant sound-absorbing cotton is installed inside the intake sound insulation box.

5. An energy-saving compressor unit according to claim 3, characterized in that: The heat storage tank (1) has brackets (2) fixedly connected to both ends of its bottom. The heat storage tank (1) has a box (3) on its outside and the brackets (2) are placed inside the box (3).

6. An energy-saving compressor unit according to claim 5, characterized in that: The input end of the air filter (16) extends into the interior of the intake soundproof box (19), and the output end of the air filter (16) extends into the interior of the active cavity (14). A controller is fixedly installed on the outside of the box (3).

7. An energy-saving compressor unit according to claim 3, characterized in that: The output shaft of the permanent magnet synchronous motor (12) extends into the interior of the transmission box (6) and is fixedly connected to the rotation shaft of the rotating disk (9). A particle sensor (17) is fixedly installed inside the air filter intake box (15) and on one side of the intake pre-filter (18).

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