Working medium cascade circulation equipment for CO2 refrigerant

Abstract

The utility model provides working medium cascade circulation equipment for CO2 refrigerant, and relates to the technical field of compressors. The working medium cascade circulation equipment of the CO2 refrigerant comprises a compressor body, the bottom face of the compressor body is fixedly connected with a supporting bottom plate, a switching mechanism is arranged below the compressor body and comprises a fixing box, and the inner bottom wall of the fixing box is fixedly connected with a fixing block. According to the working medium cascade circulation equipment for the CO2 refrigerant, the fixed box, the fixed block, the rotating disc, the swing rod, the first bevel gear, the second bevel gear, the telescopic rod, the fan blades, the rotating rod, the hydraulic rod and the spring are arranged in a matched mode; therefore, the fan blades can rotate to dissipate heat of the compressor body while vibration driven when the compressor body works can be effectively utilized to weaken the compressor body; and the problems of machine abrasion caused by strenuous vibration and incapability of dissipating a large amount of heat and shortened service life caused by equipment failure are avoided.

Description

Technical Field

[0001] The utility model relates to a cascade circulation device, in particular to a working medium cascade circulation device of a CO2 refrigerant, belonging to the technical field of compressors. Background Art

[0002] The compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. It sucks low-temperature, low-pressure refrigerant gas from the suction pipe, compresses it through the motor, and discharges high-temperature, high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle.

[0003] After searching, a Chinese patent with publication number CN216429942U discloses a cascade compressor using different environmentally friendly refrigerants, including a compressor body, a gas compression chamber is arranged inside the compressor body, and the upper end of the motor rotor is connected to an anti-rotation slip ring through a crankshaft. The utility model facilitates the input of different types of environmentally friendly refrigerants into the compressor, and can improve the refrigeration efficiency of the compressor.

[0004] Although the above scheme is convenient for inputting different types of environmentally friendly refrigerants into the compressor, which can improve the refrigeration efficiency of the compressor, the compressor often produces violent vibrations and generates a lot of heat during operation. If no corresponding measures are taken, it will cause machine wear and the equipment is prone to failure, resulting in a reduced service life. For this reason, we provide a CO2 refrigerant working fluid cascade cycle equipment to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a CO2 refrigerant working medium cascade cycle device in order to solve the above problems, so as to solve the problem that the prior art cannot perform vibration reduction and heat dissipation on the compressor when it is working.

[0007] (II) Technical solution

[0008] The utility model is implemented through the following technical scheme: a working medium cascade cycle device for CO2 refrigerant, including a compressor body, the bottom surface of the compressor body is fixedly connected to a supporting bottom plate, a conversion mechanism is arranged below the compressor body, the conversion mechanism includes a fixed box, the inner bottom wall of the fixed box is fixedly connected to a fixed block, the inner wall of the fixed block is rotatably connected to a turntable, the outer surface of the turntable is hinged with a swing rod, one end of the swing rod away from the turntable is hinged to the supporting bottom plate, the outer surface of the turntable is fixedly connected to a bevel gear one, and the outer surface of the bevel gear one is rotatably connected to the fixed block.

[0009] Preferably, the outer surface of the bevel gear one is meshingly connected with the bevel gear two, and the top surface of the bevel gear two is fixedly connected with a telescopic rod, so that the position of the bevel gear two will not be changed when the supporting base plate moves downward.

[0010] Preferably, the telescopic end of the telescopic rod is fixedly connected with a fan blade, the outer surface of the fan blade is rotatably connected to the supporting base plate, and a limiting ring is fixedly installed between the fan blade and the supporting base plate, which effectively limits the fan blade to rotate in the inner wall of the supporting base plate.

[0011] Preferably, a rotating rod is fixedly connected to the bottom surface of the bevel gear 2, and one end of the rotating rod away from the bevel gear 2 is rotatably connected to the fixed box. Through the setting of the rotating rod, the bevel gear 2 is effectively supported and fixed.

[0012] Preferably, a hydraulic rod is fixedly connected to the inner bottom wall of the fixed box, the telescopic end of the hydraulic rod is fixedly connected to the supporting base plate, a spring is sleeved on the outer surface of the hydraulic rod, one end of the spring is fixedly connected to the supporting base plate, and the end of the spring away from the supporting base plate is fixedly connected to the hydraulic rod. During the telescopic process of the hydraulic rod, the telescopic end will slowly telescope and retract under the influence of the hydraulic pressure. When the supporting base plate moves downward, the support base plate will slowly move downward due to the resilience of the spring. When the supporting base plate moves up, it will slowly move up according to the slowness of the telescopic movement of the hydraulic rod, thereby avoiding severe shaking of the compressor body during operation.

[0013] Preferably, a slider is fixedly connected to the outer surface of the support base plate, and the outer surface of the slider is slidably connected to the fixed box. Through the provision of the slider, the support base plate can be effectively made more stable when moving up and down.

[0014] Preferably, a clamping mechanism is provided on the outside of the compressor body, and the clamping mechanism includes a connecting pipe, one end of the connecting pipe is fixedly connected to the compressor body, and the end of the connecting pipe away from the compressor body is fixedly connected to a refrigerant storage tank. By setting the two connecting pipes, different types of refrigerants can be effectively transported to the inside of the compressor body, thereby improving the refrigeration efficiency.

[0015] Preferably, the outer surface of the compressor body is fixedly connected to a limit block, the inner wall of the limit block is rotatably connected to a bidirectional screw, the outer surface of the bidirectional screw is threadedly connected to a clamping ring, the bottom surface of the clamping ring is fixedly connected to a support plate, the outer surface of the clamping ring is slidably connected to the compressor body, and through the arrangement of the clamping ring and the support plate, each refrigerant storage tank can be disassembled and assembled more conveniently.

[0016] The utility model provides a CO2 refrigerant working medium cascade cycle device, which has the following beneficial effects:

[0017] 1. The CO2 refrigerant working medium cascade circulation device is configured by the coordination of a fixed box, a fixed block, a turntable, a swing rod, a bevel gear 1, a bevel gear 2, a telescopic rod, a fan blade, a rotating rod, a hydraulic rod and a spring. When the compressor body generates severe vibration during operation, the hydraulic rod and the spring can be effectively extended and deformed, and the swing rod can be effectively swung to drive the fan blade to rotate. Thus, the utility model can effectively utilize the vibration caused by the compressor body during operation to weaken it, and at the same time, the fan blade can be rotated to dissipate heat for the compressor body, thereby avoiding the problem of machine wear caused by severe vibration and a large amount of heat that cannot be dissipated, and equipment failure leading to reduced service life.

[0018] 2. The CO2 refrigerant working medium cascade cycle equipment is arranged through the cooperation of connecting pipes, refrigerant storage tanks, limit blocks, bidirectional screws, clamping rings and support plates. By rotating the bidirectional screws, the two clamping rings and the support plates can be moved closer to or farther away from each other, thereby realizing the utility model that the refrigerant storage tank can be conveniently fixed or disassembled by rotating the bidirectional screws. Through the arrangement of two connecting pipes, different types of refrigerants can be effectively transported to the interior of the compressor body, thereby improving the refrigeration efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the conversion mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the hydraulic rod of the utility model;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the clamping mechanism of the utility model.

[0023]

Main component symbol description

[0024] 1. Compressor body; 2. Support base plate;

[0025] 3. Conversion mechanism; 301. Fixed box; 302. Fixed block; 303. Turntable; 304. Swinging rod; 305. Bevel gear 1; 306. Bevel gear 2; 307. Telescopic rod; 308. Fan blade; 309. Turning rod; 310. Hydraulic rod; 311. Spring;

[0026] 4. Slider;

[0027] 5. Clamping mechanism; 501. Connecting pipe; 502. Refrigerant storage tank; 503. Limiting block; 504. Bidirectional screw rod; 505. Clamping ring; 506. Support plate. DETAILED DESCRIPTION

[0028] The embodiment of the utility model provides a working medium cascade cycle device of CO2 refrigerant.

[0029] See also Figure 1 , including a compressor body 1. When the compressor body 1 is in circulation operation, the low-temperature and low-pressure refrigerant gas inside the refrigerant storage tank 502 is sucked into the compressor body 1 and pressurized to become a high-temperature and high-pressure refrigerant gas. The high-temperature and high-pressure refrigerant gas releases heat in the heat exchanger to become a medium-temperature and high-pressure liquid. The medium-temperature and high-pressure liquid is throttled and reduced in pressure by a throttling component to become a low-temperature and low-pressure liquid. The low-temperature and low-pressure liquid refrigerant absorbs heat and evaporates in the heat exchanger to become a low-temperature and low-pressure gas. The low-temperature and low-pressure refrigerant gas is then sucked into the compressor.

[0030] See also Figure 2 and Figure 3 The bottom surface of the compressor body 1 is fixedly connected with a supporting base plate 2, and a conversion mechanism 3 is arranged below the compressor body 1. The conversion mechanism 3 includes a fixed box 301, and the inner bottom wall of the fixed box 301 is fixedly connected with a hydraulic rod 310. The telescopic end of the hydraulic rod 310 is fixedly connected to the supporting base plate 2, and a spring 311 is sleeved on the outer surface of the hydraulic rod 310. One end of the spring 311 is fixedly connected to the supporting base plate 2, and the end of the spring 311 away from the supporting base plate 2 is fixedly connected to the hydraulic rod 310. During the telescopic process of the hydraulic rod 310, the telescopic end of the hydraulic rod 310 will be slowly telescoped and extended under the influence of the hydraulic pressure. When the supporting base plate 2 moves downward, the supporting base plate 2 will slowly move downward through the resilience of the spring 311. When the supporting base plate 2 moves upward, it will slowly move upward according to the slowness of the telescopic movement of the hydraulic rod 310, thereby avoiding the severe shaking of the compressor body 1 during operation.

[0031] The inner bottom wall of the fixed box 301 is fixedly connected with a fixed block 302, and the inner wall of the fixed block 302 is rotatably connected with a turntable 303. The setting of the fixed block 302 effectively plays a role of fixing and limiting the turntable 303. The outer surface of the turntable 303 is hinged with a swing rod 304, and the end of the swing rod 304 away from the turntable 303 is hinged to the support base plate 2. The outer surface of the turntable 303 is fixedly connected with a bevel gear 1 305, and the outer surface of the bevel gear 1 305 is rotatably connected to the fixed block 302. The swing rod 304 is eccentrically hinged to the outer surface of the turntable 303. When the support base plate 2 moves downward, the swing rod 304 will swing to rotate the turntable 303 and drive the bevel gear 1 305 to rotate at the same time.

[0032] The outer surface of the bevel gear 1 305 is meshedly connected with the bevel gear 2 306 , and the top surface of the bevel gear 2 306 is fixedly connected with the telescopic rod 307 . By setting the telescopic rod 307 , the position of the bevel gear 2 306 will not be changed when the supporting base plate 2 moves downward.

[0033] The telescopic end of the telescopic rod 307 is fixedly connected with a fan blade 308, and the outer surface of the fan blade 308 is rotatably connected to the supporting base plate 2. A limiting ring is fixedly installed between the fan blade 308 and the supporting base plate 2, which effectively limits the fan blade 308 to the inner wall of the supporting base plate 2 for rotation. The rotation of the bevel gear 1 305 can effectively drive the bevel gear 2 306 to rotate for exhaust and heat dissipation.

[0034] The bottom surface of the second bevel gear 306 is fixedly connected with a rotating rod 309, and one end of the rotating rod 309 away from the second bevel gear 306 is rotatably connected to the fixed box 301. The setting of the rotating rod 309 effectively supports and fixes the second bevel gear 306.

[0035] The outer surface of the support base plate 2 is fixedly connected with a slider 4, and the outer surface of the slider 4 is slidably connected to the fixed box 301. Through the arrangement of the slider 4, the support base plate 2 can be effectively made more stable when moving up and down.

[0036] See also Figure 4 A clamping mechanism 5 is provided on the outside of the compressor body 1, and the clamping mechanism 5 includes a connecting pipe 501. One end of the connecting pipe 501 is fixedly connected to the compressor body 1, and one end of the connecting pipe 501 away from the compressor body 1 is fixedly connected to a refrigerant storage tank 502. Through the arrangement of the two connecting pipes 501, different types of refrigerants can be effectively transported to the inside of the compressor body 1, thereby improving the refrigeration efficiency.

[0037] The outer surface of the compressor body 1 is fixedly connected to a limit block 503, and the inner wall of the limit block 503 is rotatably connected to a bidirectional screw rod 504. The setting of the limit block 503 effectively limits the bidirectional screw rod 504. A rotating handle is installed at one end of the bidirectional screw rod 504, and the bidirectional screw rod 504 can be rotated more conveniently by rotating the handle. The outer surface of the bidirectional screw rod 504 is threadedly connected to a clamping ring 505, and the bottom surface of the clamping ring 505 is fixedly connected to a support plate 506. The outer surface of the clamping ring 505 is slidably connected to the compressor body 1. Through the setting of the clamping ring 505 and the support plate 506, each refrigerant storage tank 502 can be disassembled, assembled and clamped more conveniently.

[0038] Working principle: When in use, two refrigerant storage tanks 502 are arranged on both sides of the compressor body 1. The two clamping rings 505 are moved closer to each other by rotating the bidirectional screw rod 504 until the inner walls of the two clamping rings 505 contact the surface of the refrigerant storage tank 502 to fix and clamp it. At the same time, the two support plates 506 move closer to each other to fix and support the bottom of the refrigerant storage tank 502, so that it is more convenient to disassemble and assemble the refrigerant storage tank 502. The two connecting pipes 501 are fixedly connected to the compressor body 1, so as to facilitate the transportation of different types of refrigerants to the inside of the compressor body 1. The refrigerant in the refrigerant storage tank 502 is transported to the inside of the compressor body 1 through the connecting pipe 501, and then compressed by the rotating motor inside the compressor body 1, and finally discharged through the exhaust pipe above the compressor body 1. When the compressor body 1 is working When severe vibration and heat are generated in the compressor, the telescopic end of the hydraulic rod 310 will be telescoped up and down and the spring 311 will be deformed. The slow extension of the hydraulic rod 310 and the slow deformation of the spring 311 under compression can effectively make the hydraulic rod 310 drive the supporting base plate 2 to move up and down slowly to reduce the severe vibration of the compressor body 1 when it is working. The up and down movement of the supporting base plate 2 and the setting of the turntable 303 will make the swing rod 304 swing. The swing of the swing rod 304 drives the bevel gear 1 305 to rotate. The rotation of the bevel gear 1 305 drives the bevel gear 2 306 to rotate. The rotation of the bevel gear 2 306 drives the fan blades 308 on the telescopic end of the telescopic rod 307 to rotate to efficiently dissipate heat from the compressor body 1, thereby enabling the device to dissipate heat from the compressor body 1 while reducing vibration, making the device more practical.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A CO2 refrigerant cascade cycle device, comprising a compressor body (1), characterized in that: The bottom surface of the compressor body (1) is fixedly connected to a supporting base plate (2); a conversion mechanism (3) is arranged below the compressor body (1); the conversion mechanism (3) comprises a fixed box (301); the inner bottom wall of the fixed box (301) is fixedly connected to a fixed block (302); the inner wall of the fixed block (302) is rotatably connected to a turntable (303); the outer surface of the turntable (303) is hinged with a swing rod (304); one end of the swing rod (304) away from the turntable (303) is hinged to the supporting base plate (2); the outer surface of the turntable (303) is fixedly connected to a bevel gear 1 (305); the outer surface of the bevel gear 1 (305) is rotatably connected to the fixed block (302).

2. The CO2 refrigerant cascade cycle device according to claim 1, characterized in that: The outer surface of the bevel gear 1 (305) is meshingly connected with the bevel gear 2 (306), and the top surface of the bevel gear 2 (306) is fixedly connected with a telescopic rod (307).

3. The CO2 refrigerant cascade cycle device according to claim 2, characterized in that: The telescopic end of the telescopic rod (307) is fixedly connected to a fan blade (308), and the outer surface of the fan blade (308) is rotatably connected to the supporting base plate (2).

4. The CO2 refrigerant cascade cycle device according to claim 2, characterized in that: The bottom surface of the second bevel gear (306) is fixedly connected with a rotating rod (309), and one end of the rotating rod (309) away from the second bevel gear (306) is rotatably connected to the fixed box (301).

5. The CO2 refrigerant cascade cycle device according to claim 1, characterized in that: A hydraulic rod (310) is fixedly connected to the inner bottom wall of the fixed box (301), the telescopic end of the hydraulic rod (310) is fixedly connected to the supporting bottom plate (2), a spring (311) is sleeved on the outer surface of the hydraulic rod (310), one end of the spring (311) is fixedly connected to the supporting bottom plate (2), and one end of the spring (311) away from the supporting bottom plate (2) is fixedly connected to the hydraulic rod (310).

6. The CO2 refrigerant cascade cycle device according to claim 1, characterized in that: The outer surface of the supporting base plate (2) is fixedly connected with a sliding block (4), and the outer surface of the sliding block (4) is slidably connected to the fixed box (301).

7. The CO2 refrigerant cascade cycle device according to claim 1, characterized in that: A clamping mechanism (5) is provided on the outside of the compressor body (1), and the clamping mechanism (5) comprises a connecting pipe (501), one end of the connecting pipe (501) is fixedly connected to the compressor body (1), and one end of the connecting pipe (501) away from the compressor body (1) is fixedly connected to a refrigerant storage tank (502).

8. The CO2 refrigerant cascade cycle device according to claim 1, characterized in that: The outer surface of the compressor body (1) is fixedly connected to a limit block (503), the inner wall of the limit block (503) is rotatably connected to a bidirectional screw rod (504), the outer surface of the bidirectional screw rod (504) is threadedly connected to a clamping ring (505), the bottom surface of the clamping ring (505) is fixedly connected to a support plate (506), and the outer surface of the clamping ring (505) is slidably connected to the compressor body (1).

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