Liquid storage tank for refrigeration air conditioner

Abstract

The utility model provides a liquid storage tank for a refrigeration air conditioner, which relates to the technical field of refrigeration accessories and comprises a liquid storage tank body, the top of the liquid storage tank body is connected with a liquid inlet pipe and a liquid outlet pipe, a drying cylinder with an opening at the upper end is fixed in the liquid storage tank body, and a filter component is slidably connected in the drying cylinder. The filtering assembly comprises a supporting ring, a reset spring, a guide frame and a filtering disc, the guide frame extends outwards to form a plurality of disc scraping rods, the disc scraping rods abut against the upper side of the filtering disc, a rotating sleeve is fixed to the outer wall of the liquid outlet pipe, and a plurality of spiral grooves are formed in the outer wall of the rotating sleeve; and a plurality of rotary sliding blocks are arranged on the inner wall of the connecting cylinder, and the rotary sliding blocks are slidably connected into the spiral grooves in a concave-convex fit mode. Impurities on the filtering disc can be scraped off through mutual sliding of the filtering disc and the disc hanging rod when the filtering disc is rotated, and the phenomenon that the filtering disc is blocked to affect the refrigeration effect is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration accessories, and particularly relates to a liquid storage tank for a refrigeration air conditioner. Background Art

[0002] Refrigerant is the basis for air conditioner refrigeration. It can suck indoor hot air into the outdoor unit, release cold air after compression, thereby reducing the indoor temperature. The liquid storage tank of the air conditioner is installed between the air conditioner condenser and the expansion valve, with the functions of liquid storage, filtration, and water absorption. Since the amount of refrigerant required in different refrigeration stages of the air conditioning system is different, the liquid storage tank ensures that the refrigerant in the system is always in a saturated state, meets the refrigerant amount requirements in each stage, and thus ensures the normal operation of the air conditioning system.

[0003] Working abrasives, impure refrigerants, corrosion of the inner wall of the pipeline, pipeline maintenance, etc. in the refrigeration and air conditioning cooling system will generate solid impurities in the refrigeration system. The existence of these impurities may affect the normal operation of the air conditioning system. Usually, the refrigerant will be filtered and dried through the liquid storage tank. However, during the long construction process, the accumulation of impurities will block the filter screen, thereby affecting the refrigeration effect. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a liquid storage tank for a refrigeration air conditioner, which solves the problems raised in the above background art.

[0006] (2) Technical Solutions

[0007] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0008] A liquid storage tank for a refrigeration air conditioner includes a liquid storage tank body. An inlet pipe and an outlet pipe are connected to the top of the liquid storage tank body. A drying cylinder with an open top is fixed inside the liquid storage tank body. A desiccant is filled in the drying cylinder. The liquid storage tank body is fixedly connected to the middle part of the liquid storage tank body, passes through the drying cylinder, and extends to the bottom of the liquid storage tank body. A filtering component is slidably connected inside the drying cylinder. The filtering component includes a support ring, a return spring, a guide frame, and a filtering disk. The support ring is fixed in the middle of the outlet pipe. The guide frame is slidably connected to the support ring. The two ends of the return spring respectively abut against the support ring and the guide frame. The filtering disk is rotatably connected to the filtering disk. The filtering disk slidably penetrates through the open side of the drying cylinder.

[0009] Preferably, the guiding frame includes a connecting ring, a guiding rod and a positioning ring. The connecting ring is slidably sleeved outside the liquid outlet pipe. The guiding rod is connected between the connecting ring and the positioning ring. The guiding rod slidably penetrates through the supporting ring. A plurality of scraping disc rods extend outward from the outer wall of the connecting ring, and the scraping disc rods abut against the upper side of the filtering disc.

[0010] Preferably, a connecting cylinder is arranged in the middle of the filtering disc, and the connecting ring is rotatably connected to the connecting cylinder.

[0011] Preferably, a rotating sleeve is fixed on the outer wall of the liquid outlet pipe. A plurality of spiral grooves are arranged on the outer wall of the rotating sleeve, and a plurality of rotating sliders are arranged on the inner wall of the connecting cylinder. The rotating sliders are slidably connected in the spiral grooves in a concave-convex matching manner.

[0012] Preferably, the outer wall of the liquid outlet pipe is provided with an external thread, and the rotating sleeve is threadedly connected to the outer wall of the liquid outlet pipe.

[0013] (III) Beneficial effects

[0014] The utility model provides a liquid storage tank for a refrigeration air conditioner. It has the following beneficial effects:

[0015] 1. In the utility model, the refrigerant condensed in the condenser enters the liquid storage tank body from the liquid inlet pipe for filtration and drying, and flows out from the liquid outlet pipe at the bottom of the liquid storage tank and enters the expansion valve. When the filtering disc is blocked by impurities after long-term use, the refrigerant flow rate decreases, causing the refrigerant to accumulate on the upper side of the filtering disc and increasing the pressure on the upper side of the filtering disc. The filtering disc is squeezed to slide up and down the rotating sleeve. Under the action of the spiral groove and the rotating slider, the filtering disc will rotate in the spiral groove to scrape off the impurities blocked on the upper side of the filtering disc, restoring the smoothness of the filtering disc. Then, under the action of the return spring, the filtering disc is reset to complete the cleaning of the filtering disc and avoid the filtering disc being blocked by sundries. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a liquid storage tank for a refrigeration air conditioner according to the utility model;

[0017] Figure 2 is a schematic structural diagram of the filtering assembly in the utility model;

[0018] Figure 3 is an exploded view of the filtering assembly in the utility model.

[0019] In the figure: 1. Liquid storage tank body; 2. Liquid inlet pipe; 3. Liquid outlet pipe; 4. Drying cylinder; 5. Supporting ring; 6. Return spring; 7. Guiding frame; 71. Connecting ring; 72. Positioning ring; 73. Guiding rod; 8. Filtering disc; 9. Connecting cylinder; 10. Scraping disc rod; 11. Rotating sleeve; 12. Rotating slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0021] The embodiment of the present utility model provides a liquid storage tank for a refrigeration air conditioner.

[0022] As Figure 1 shown, it includes a liquid storage tank body 1. An inlet pipe 2 and an outlet pipe 3 are connected to the top of the liquid storage tank body 1. A drying cylinder 4 with an open upper end is fixed inside the liquid storage tank body 1. A plurality of sieve holes are provided at the bottom of the drying cylinder 4. After the refrigerant is filtered and dried, it smoothly passes through and flows out from the outlet pipe 3. A desiccant is filled in the drying cylinder 4. The liquid storage tank body 1 is fixedly connected to the middle of the liquid storage tank body 1, passes through the drying cylinder 4 and extends to the bottom of the liquid storage tank body 1. A filtering assembly is slidably connected inside the drying cylinder 4.

[0023] As Figure 2 shown, the filtering assembly includes a support ring 5, a return spring 6, a guide frame 7 and a filter disc 8. The support ring 5 is fixed in the middle of the outlet pipe 3. The guide frame 7 is slidably connected to the support ring 5. The two ends of the return spring 6 respectively abut against the support ring 5 and the guide frame 7. The filter disc 8 is rotatably connected to the filter disc 8. The filter disc 8 slidably passes through the opening side of the drying cylinder 4. The guide frame 7 includes a connecting ring 71, a positioning ring 72 and a plurality of guide rods 73. The connecting ring 71 is slidably sleeved outside the outlet pipe 3. A plurality of the guide rods 73 are connected between the connecting ring 71 and the positioning ring 72. The guide rods 73 slidably pass through the support ring 5. The positioning ring 72 and the connecting ring 71 are respectively arranged on the upper and lower sides of the support ring 5. A connecting cylinder 9 is provided in the middle of the filter disc 8. Connecting grooves are provided on the outer wall of the connecting cylinder 9. The connecting ring 71 is rotatably sleeved on the connecting grooves. A plurality of scraping disc rods 10 extend outward from the outer wall of the connecting ring 71. The scraping disc rods 10 abut against the upper side of the filter disc 8. Under the limiting action of the guide rods 73, the connecting ring 71 can only slide up and down outside the outlet pipe 3.

[0024] As Figure 3 shown, an external thread is provided on the outer wall of the outlet pipe 3. A rotating sleeve 11 is fixed on the outer wall of the outlet pipe 3. The rotating sleeve 11 is threadedly connected to the outer wall of the outlet pipe 3. A plurality of spiral grooves are provided on the outer wall of the rotating sleeve 11. A plurality of rotating sliders 12 are provided on the inner wall of the connecting cylinder 9. The rotating sliders 12 are slidably connected to the spiral grooves in a concave-convex fit manner. When the filter disc 8 receives pressure, the rotating sliders 12 will slide in the spiral grooves, thereby causing the filter disc 8 to rotate on the rotating sleeve 11. The scraping disc rods 10 slide relative to the filter disc 8, completing the scraping and cleaning of impurities on the filter disc 8, and avoiding the blockage of the filter holes on the filter disc 8 by impurities.

[0025] Working principle:

[0026] In the utility model, the liquid refrigerant condensed by the condenser and part of the gaseous refrigerant enter the liquid storage tank from the liquid inlet pipe 2, the gaseous refrigerant is separated from the liquid proppant, the impurities in the coolant are filtered by the filter disk 8 and retained on the filter disk 8 of the liquid storage tank, the moisture in the coolant is dried by the desiccant, and then enters the expansion valve through the liquid outlet pipe 3, and the liquid outlet pipe 3 extends into the bottom of the liquid storage tank, which can prevent the gaseous refrigerant from entering the expansion valve;

[0027] When there are many impurities in the liquid outlet pipe 3 and the filter disc 8 is blocked, the liquid refrigerant will accumulate on the upper side of the filter disc 8, causing the pressure on the upper side of the filter disc 8 to increase, forming a pressure difference between the upper and lower sides of the filter disc 8, forcing the filter disc 8 to slide downward. During the sliding process, the rotating slider 12 is guided by the spiral groove on the outer wall of the rotating sleeve 11, which will cause the filter disc 8 to rotate on the rotating sleeve 11 and slide relative to the scraper rod 10 to scrape and clean the impurities on the filter disc 8, so that the filter disc 8 remains unobstructed and resumes normal working state. When the pressure on the upper and lower sides of the filter disc 8 reaches equilibrium, the filter disc 8 is reset to its initial state under the action of the reset spring 6.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid storage tank for refrigeration and air conditioning, comprising a liquid storage tank body, a liquid inlet pipe and a liquid outlet pipe connected to the top of the liquid storage tank body, characterized in that: A drying cylinder with an open upper end is fixed in the liquid storage tank body, and the drying cylinder is filled with desiccant. The liquid storage tank body is fixedly connected to the middle part of the liquid storage tank body, passes through the drying cylinder and extends to the bottom of the liquid storage tank body. A filter assembly is slidably connected in the drying cylinder, and the filter assembly includes a support ring, a return spring, a guide frame and a filter plate. The support ring is fixed in the middle part of the liquid outlet pipe, and the guide frame is slidably connected to the support ring, and the two ends of the return spring respectively abut against the support ring and the guide frame, and the filter plate is rotatably connected to the filter plate, and the filter plate is slidably penetrated through the opening side of the drying cylinder.

2. A liquid storage tank for refrigeration and air conditioning according to claim 1, characterized in that: The guide frame includes a connecting ring, a guide rod and a positioning ring. The connecting ring is slidably sleeved on the outside of the liquid outlet pipe. The guide rod is connected between the connecting ring and the positioning ring. The guide rod is slidably penetrated on the supporting ring. A plurality of scraper rods are extended outward from the outer wall of the connecting ring. The scraper rods abut against the upper side of the filter plate.

3. A liquid storage tank for refrigeration and air conditioning according to claim 2, characterized in that: A connecting cylinder is arranged in the middle of the filter disc, and the connecting ring is rotatably connected to the connecting cylinder.

4. A liquid storage tank for refrigeration and air conditioning according to claim 3, characterized in that: A rotating sleeve is fixed on the outer wall of the liquid outlet pipe, a plurality of spiral grooves are arranged on the outer wall of the rotating sleeve, a plurality of rotating sliders are arranged on the inner wall of the connecting tube, and the rotating sliders are connected in the spiral grooves by sliding with concave and convex fitting.

5. A liquid storage tank for refrigeration and air conditioning according to claim 4, characterized in that: The outer wall of the liquid outlet pipe is provided with an external thread, and the rotating sleeve is threadedly connected to the outer wall of the liquid outlet pipe.

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