Automatic defrosting gas-liquid separator for refrigerating system

Abstract

The invention relates to the related technical field of refrigerating systems, and particularly discloses an automatic defrosting gas-liquid separator for a refrigerating system, which comprises a separator shell of a barrel-shaped structure, an upper cover body and a lower cover body are fixedly mounted on the upper side and the lower side of the separator shell respectively, and a liquid inlet pipe communicated with the separator shell is fixedly mounted on the side surface of the separator shell; and a liquid outlet pipe is fixedly installed below the lower cover body, and an exhaust pipe communicating with the interior of the separator shell is fixedly installed on the upper surface of the upper cover body. According to the automatic defrosting gas-liquid separator for the refrigerating system, when liquid enters through a liquid inlet pipe, an upper blade is pushed, the upper blade is used for driving a first baffle to rotate, the first baffle drives a center rotating shaft to rotate, and at the moment, the center rotating shaft drives a reciprocating lead screw to rotate under the action of a synchronous belt; the reciprocating screw rod drives a movable ring which is installed outside the reciprocating screw rod in a penetrating and threaded mode to move up and down in the rotating process, and frost on the outer surface of the separation shell is removed through a defrosting brush on the inner side surface of the movable ring.

Description

Technical Field

[0001] The invention relates to the technical field related to refrigeration systems, and in particular to a gas-liquid separator for an automatic defrosting refrigeration system. Background Art

[0002] Gas-liquid separators are widely used in refrigeration systems such as air conditioners, refrigerators and heat pumps to ensure that the system can operate stably under various working conditions. They are an important component in the refrigeration system. They are mainly used to separate the gas and liquid in the refrigerant, separate the liquid refrigerant from the gaseous refrigerant, and prevent the liquid from entering the compressor, thereby avoiding damage to the compressor.

[0003] In the prior art, a Chinese patent with publication number CN116164450A discloses a gas-liquid separator and a refrigeration system, wherein the gas-liquid separator comprises a container, a first partition and a second partition, the inner cavity of the container is divided into a first cavity, a second cavity and a third cavity, a filtering structure is arranged in the first cavity, the container has a fluid inlet for supplying a gas-liquid mixture, a liquid outlet interface for discharging liquid and a gas outlet interface for discharging gas, the fluid inlet is connected with the second cavity, the liquid outlet interface is connected with the third cavity, and the gas outlet interface is connected with the first cavity, and by arranging a multi-stage cavity in the container, the gas-liquid mixture can achieve multiple gas-liquid separations during the movement, effectively extending the movement path of the gas-liquid mixture, and the setting of the filtering structure can make the gas pass through the filtering structure before being discharged, so as to prevent the gas from bringing out liquid when being discharged, thereby improving the effect of gas-liquid separation.

[0004] As another example in the prior art, a Chinese patent with publication number CN116659123A discloses a gas-liquid separator and a refrigeration device, wherein the gas-liquid separator comprises a shell and a filter assembly, wherein a partition is provided in the shell, and the partition is used to separate the inner cavity of the shell into a first chamber and a second chamber arranged up and down, and the first chamber and the second chamber are connected to each other at the partition, and the shell is provided with an air inlet and an exhaust port; the filter assembly is arranged in the first chamber, and the filter assembly comprises a filter, and the filter divides the first chamber into an air inlet chamber and a filter chamber in the horizontal direction, and the air inlet is connected to the air inlet chamber, and the exhaust port is connected to the filter chamber.

[0005] As another example in the prior art, a Chinese patent with publication number CN102287976A discloses a gas-liquid separator, including a shell assembly, a shell inner cavity is formed inside the shell; an air inlet pipe assembly and an air outlet pipe assembly are respectively connected to the shell inner cavity; the shell assembly includes a shell, the shell includes an outer shell and an inner shell, and a accommodating space for passing through is formed on the inner side of the inner shell.

[0006] Based on the above materials, it can be seen that in the prior art, baffles and filters are generally used to separate liquid and gas. However, in actual use, since the gas-liquid separator is used in a refrigeration system, the liquid and gas inside the separator are refrigerants, which will cause the temperature of the separator to drop. At this time, the water in the external air will frost on the surface of the separator when it is cooled, affecting normal use. Summary of the invention

[0007] The object of the present invention is to provide a gas-liquid separator for a refrigeration system with automatic defrosting, so as to solve the problem in the above-mentioned background technology that frost on the outside of the separator cannot be handled.

[0008] To achieve the above object, the present invention provides the following technical solution: a gas-liquid separator for a refrigeration system with automatic defrosting, comprising a separator housing in a barrel-shaped structure, an upper cover body and a lower cover body being fixedly installed on the upper and lower sides of the separator housing, respectively, and a liquid inlet pipe communicating with the separator housing being fixedly installed on the side of the separator housing, and a liquid outlet pipe being fixedly installed below the lower cover body, and further comprising: An exhaust pipe communicating with the interior of the separator housing is fixedly mounted on the upper surface of the upper cover body, and a first baffle disposed laterally is rotatably mounted on the upper end of the interior of the separator housing; A movable ring in an annular structure is arranged outside the separator housing, and a defrosting brush for cleaning frost on the outer surface of the separator housing is fixedly installed on the inner surface of the movable ring, and a reciprocating screw and a guide slide are installed between the upper cover body and the lower cover body, the reciprocating screw and the movable ring are threadedly connected, and the guide slide is threadedly connected with the movable ring; An automatically driven transmission mechanism is provided between the first baffle and the reciprocating screw rod; A filter box is fixedly installed between the exhaust pipe and the upper cover body, and an adsorption sponge for absorbing liquid is fixedly installed inside the filter box.

[0009] Preferably, the transmission mechanism includes a central shaft that is longitudinally rotatably installed in the middle position inside the separator housing, and the central shaft is fixedly installed between the first baffle, and the central shaft rotates synchronously with the reciprocating screw through a synchronous belt at its upper end.

[0010] Preferably, a second baffle with an annular structure is fixedly installed in the middle position inside the first baffle, and hole structures are opened inside the first baffle and the second baffle, and upper blades and lower blades are fixedly installed on the outer surfaces of the upper and lower ends of the second baffle respectively.

[0011] Preferably, the position of the upper blade corresponds to the upper end position of the liquid inlet pipe, and the position of the lower blade corresponds to the position of the lifting pipe, and the lifting pipe is fixedly installed outside the separator housing.

[0012] Preferably, a delivery pump for secondary separation is fixedly installed on the outside of the lifting pipe, and the positions of the avoidance grooves opened in the lifting pipe and the movable ring correspond to each other.

[0013] Preferably, a squeezing plate for squeezing the adsorption sponge is fixedly mounted on the side surface thereof, and a connecting rod for driving the squeezing plate to move is fixedly mounted on the outer surface of the squeezing plate, and a through-type sliding structure is formed between the connecting rod and the filter box.

[0014] Preferably, a reset spring is installed outside the connecting rod to drive it to reset, and the reset spring is fixedly connected to the outer surface of the filter box, and the connecting rod and the extrusion cam are squeezed against each other, and the extrusion cam is fixedly installed on the top of the central rotating shaft.

[0015] Preferably, a third baffle plate installed transversely is provided at the lower end of the separator housing, and the third baffle plate and the central rotating shaft are penetrated without contact, and a connecting sleeve is rotatably installed at the middle position of the upper surface of the third baffle plate.

[0016] Preferably, a stirring rod for stirring the liquid inside the separator housing is fixedly mounted on the outer surface of the connecting sleeve, and a snap-fit ​​groove is provided inside the connecting sleeve, and the snap-fit ​​groove and the protruding structure on the outer surface of the lower end of the central rotating shaft are snap-fitted with each other.

[0017] Preferably, the movable ring is made of magnetic material, the connecting sleeve drives the third baffle plate and the central rotating shaft to form an up and down sliding structure, and a strong magnetic block is fixedly installed on the side of the third baffle plate, and the strong magnetic block and the movable ring are magnetically attracted to each other.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the gas-liquid separator for the automatic defrosting refrigeration system adopts a new structural design, the specific contents of which are as follows: 1. The refrigerant in the refrigeration system enters the separation shell through the liquid inlet pipe. The incoming liquid hits the first baffle, the second baffle and the third baffle, promoting the gas in the liquid to overflow. Finally, the liquid accumulates at the lower end of the separator shell under the action of gravity, and the overflowed gas is discharged through the exhaust pipe to achieve the purpose of gas-liquid separation; Furthermore, when the liquid enters through the liquid inlet pipe, it pushes the upper blade, and the upper blade drives the first baffle to rotate, so that the first baffle drives the central shaft to rotate. At this time, under the action of the synchronous belt, the central shaft drives the reciprocating screw to rotate. During the rotation process, the reciprocating screw drives the movable ring installed with a thread passing through its outside to move up and down, and the defrosting brush on the inner surface of the movable ring is used to remove the frost on the outer surface of the separation shell; Furthermore, the lifting pipe lifts the liquid upward for a second time and sprays it out under the action of the delivery pump, thereby hitting the second baffle again to achieve a better gas-liquid separation effect, and the cooperation between the lifting pipe and the lower blade can improve the rotation effect of the first baffle.

[0019] 2. The separated gas passes through the filter box before being discharged, and the adsorption sponge in the filter box is used to absorb the mixed liquid. At the same time, the central shaft drives the extrusion cam to rotate synchronously when it rotates. The extrusion cam is used to extrude the connecting rod, so that the connecting rod drives the extrusion plate to extrude the adsorption sponge, thereby squeezing out the liquid in the adsorption sponge to ensure its subsequent adsorption effect.

[0020] 3. During the rotation process, the central shaft drives the connecting sleeve to rotate by using the cooperation between the external protruding structure at the lower end and the engaging groove, so that the stirring rod outside the connecting sleeve stirs the liquid inside the separator shell to assist the gas in the liquid to escape; Furthermore, during the up and down movement, the movable ring drives the third baffle to move up and down synchronously through the magnetic attraction between the movable ring and the strong magnetic block, so that the third baffle can improve the stirring effect of the liquid inside the separator housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the lower surface of the separator housing of the present invention; Figure 3 It is a schematic diagram of the internal structure of the separator housing of the present invention; Figure 4 It is a schematic diagram of the transmission relationship structure of the reciprocating screw rod of the present invention; Figure 5 This is a schematic diagram of the installation position structure of the upper blade and the lower blade of the present invention; Figure 6 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 7 This is a schematic diagram of the internal structure of the filter box of the present invention; Figure 8 It is a schematic structural diagram of the position relationship between the movable ring and the third baffle of the present invention; Fig. 9 This is a schematic structural diagram of the installation relationship between the connecting sleeve and the third baffle of the present invention; Fig.10 For the present invention Fig. 9 Enlarged structural diagram at B in the middle.

[0022] In the figure: 1. separator housing; 2. upper cover body; 3. lower cover body; 4. liquid inlet pipe; 5. liquid outlet pipe; 6. exhaust pipe; 7. first baffle; 8. second baffle; 9. movable ring; 901. defrost brush; 902. avoidance groove; 10. reciprocating screw; 11. guide slide rod; 12. central shaft; 13. synchronous belt; 14. upper blade; 15. lower blade; 16. lifting pipe; 17. delivery pump; 18. filter box; 19. adsorption sponge; 20. extrusion plate; 21. connecting rod; 22. reset spring; 23. extrusion cam; 24. third baffle; 25. connecting sleeve; 26. stirring rod; 27. engaging groove; 28. strong magnetic block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figure 1-Figure 5In order to solve the problem that the traditional device cannot remove the frost on the surface, the present embodiment provides the following technical solutions, which utilizes the movable ring 9 to drive the defrost brush 901 to move to achieve the purpose of cleaning the frost, and specifically discloses: a separator housing 1 with a barrel-shaped structure, an upper cover body 2 and a lower cover body 3 are fixedly installed on the upper and lower sides of the separator housing 1, and a liquid inlet pipe 4 connected to it is fixedly installed on the side of the separator housing 1, and a liquid outlet pipe 5 is fixedly installed below the lower cover body 3, an exhaust pipe 6 connected to the inside of the separator housing 1 is fixedly installed on the upper surface of the upper cover body 2, and a first baffle 7 arranged laterally is rotatably installed on the upper end of the separator housing 1, a movable ring 9 with an annular structure is arranged on the outside of the separator housing 1, and a defrost brush 901 for cleaning the frost on the outer surface of the separator housing 1 is fixedly installed on the inner surface of the movable ring 9, and a reciprocating screw 10 and a guide slide 11 are installed between the upper cover body 2 and the lower cover body 3, the reciprocating screw 10 and the movable ring 9 are threadedly connected, and the guide slide 11 is connected to the movable The rings 9 are penetrated and slidably connected, and an automatically driven transmission mechanism is arranged between the first baffle plate 7 and the reciprocating screw rod 10, the transmission mechanism comprises a central rotating shaft 12 which is longitudinally rotated and installed in the middle position inside the separator housing 1, and the central rotating shaft 12 is fixedly installed between the first baffle plate 7, and the central rotating shaft 12 rotates synchronously with the reciprocating screw rod 10 through the synchronous belt 13 at its upper end, a second baffle plate 8 with an annular structure is fixedly installed in the middle position inside the first baffle plate 7, and the first baffle plate 7 and the second baffle plate 8 are both provided with hole structures, and the upper and lower ends of the second baffle plate 8 are respectively fixedly installed with upper blades 14 and lower blades 15 on the outer surfaces, the position of the upper blade 14 corresponds to the upper end position of the liquid inlet pipe 4, and the position of the lower blade 15 corresponds to the position of the lifting pipe 16, the lifting pipe 16 is fixedly installed on the outside of the separator housing 1, and a delivery pump 17 for secondary separation is fixedly installed on the outside of the lifting pipe 16, and the position of the lifting pipe 16 corresponds to the avoidance groove 902 opened in the movable ring 9.

[0025] When using the device, first install the device in a refrigeration system. The refrigerant in the refrigeration system enters the separator housing 1 through the liquid inlet pipe 4. The entering liquid hits the first baffle 7 and the second baffle 8, causing the gas in the liquid to overflow. The overflowing gas is discharged through the exhaust pipe 6 and re-enters the refrigeration system. The remaining liquid falls to the bottom of the separator housing 1 under its own gravity (and eventually discharged back to the refrigeration system from the liquid outlet pipe 5). During this process, the liquid discharged from the liquid inlet pipe 4 hits the upper blade 14, causing the upper blade 14 to drive the second baffle 8 and the first baffle 7 to rotate. During the rotation of the first baffle 7, the central rotating shaft 12 fixed thereto is driven to rotate. The central rotating shaft 1 During the rotation, the reciprocating screw 10 is driven to rotate by the synchronous belt 13, and the rotation of the reciprocating screw 10 drives the movable ring 9 installed with a thread through the outside thereof to reciprocate up and down (the movable ring 9 is limited by the guide slide bar 11). At this time, the defrosting brush 901 fixedly installed on the inner side of the movable ring 9 is used to clean the frost on the outer surface of the separator housing 1 due to the low temperature. During this process, the delivery pump 17 is regularly turned on, so that the delivery pump 17 can lift the liquid inside the separator housing 1 upward again and spray it out under the action of the lifting pipe 16, and the sprayed liquid impacts the lower blade 15, thereby enhancing the rotational force of the first baffle 7 and the second baffle 8, and the secondary spraying can improve the gas-liquid separation effect.

[0026] Example 2: Please refer to Figure 6-Figure 7 In order to achieve a better separation effect, the present embodiment provides the following technical solution, which utilizes an adsorption sponge 19 to absorb the liquid mixed in the liquid, and specifically discloses: a filter box 18 is fixedly installed between the exhaust pipe 6 and the upper cover body 2, and an adsorption sponge 19 for absorbing the liquid is fixedly installed inside the filter box 18, and an extrusion plate 20 for extruding the adsorption sponge 19 is fixedly installed on the side of the adsorption sponge 19, and a connecting rod 21 for driving the extrusion plate 20 to move is fixedly installed on the outer surface of the extrusion plate 20, and a through-type sliding structure is formed between the connecting rod 21 and the filter box 18, a reset spring 22 for driving the reset is installed outside the connecting rod 21, and the reset spring 22 is fixedly connected to the outer surface of the filter box 18, and the connecting rod 21 and the extrusion cam 23 are squeezed against each other, and the extrusion cam 23 is fixedly installed on the top of the central rotating shaft 12.

[0027] The separated liquid first enters the filter box 18 before being discharged from the exhaust pipe 6, and the adsorption sponge 19 inside the filter box 18 is used to adsorb a small amount of liquid that may be mixed in the gas. At the same time, the central rotating shaft 12 drives the extrusion cam 23 coaxially fixedly installed on its top to rotate during the rotation process, and the extrusion cam 23 is used to squeeze the connecting rod 21, so that the connecting rod 21 drives the extrusion plate 20 to squeeze the adsorption sponge 19 (the reset spring 22 is then used to drive the extrusion plate 20 to reset), and the liquid adsorbed in the adsorption sponge 19 is squeezed out, thereby ensuring the subsequent water absorption effect of the adsorption sponge 19.

[0028] Example 3: Please refer to Figure 8-Figure 10 In order to achieve the purpose of stirring the liquid inside the separator housing 1, the present embodiment provides the following technical solutions, which specifically disclose: a third baffle 24 installed laterally is provided at the lower end of the separator housing 1, and the third baffle 24 and the central rotating shaft 12 are penetrated without contact, and a connecting sleeve 25 is rotatably installed at the middle position of the upper surface of the third baffle 24, and a stirring rod 26 for stirring the liquid inside the separator housing 1 is fixedly installed on the outer surface of the connecting sleeve 25, and a snap-fitting groove 27 is provided inside the connecting sleeve 25, and the snap-fitting groove 27 and the protruding structure on the outer surface of the lower end of the central rotating shaft 12 are mutually snapped, and the movable ring 9 is set to be a magnetic material, and the connecting sleeve 25 drives the third baffle 24 and the central rotating shaft 12 to form an up and down sliding structure, and a strong magnetic block 28 is fixedly installed on the side of the third baffle 24, and the strong magnetic block 28 and the movable ring 9 are magnetically attracted to each other.

[0029] During the rotation process, the central rotating shaft 12 drives the connecting sleeve 25 to rotate by utilizing the engagement between the protruding structure on the outer surface of its lower end and the engagement groove 27, so that the connecting sleeve 25 drives the stirring rod 26 outside it to rotate, so that the stirring rod 26 stirs the liquid inside the separator housing 1, thereby accelerating the separation of gas from the liquid, and during the up and down movement of the movable ring 9, the magnetic adsorption effect between it and the strong magnetic block 28 drives the third baffle plate 24 to move up and down synchronously, thereby utilizing the third baffle plate 24 to synchronously stir the liquid inside the separator housing 1, thereby further improving the gas-liquid separation effect.

[0030] 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 gas-liquid separator for an automatic defrosting refrigeration system, comprising a separator housing (1) in a barrel-shaped structure, wherein an upper cover (2) and a lower cover (3) are fixedly mounted on the upper and lower sides of the separator housing (1), respectively, and a liquid inlet pipe (4) connected to the separator housing (1) is fixedly mounted on the side of the separator housing (1), and a liquid outlet pipe (5) is fixedly mounted below the lower cover (3), characterized in that: Also includes: An exhaust pipe (6) communicating with the interior of the separator housing (1) is fixedly mounted on the upper surface of the upper cover body (2), and a first baffle (7) arranged transversely is rotatably mounted on the upper end of the interior of the separator housing (1); The separator housing (1) is provided with a movable ring (9) in an annular structure on the outside, and a defrosting brush (901) for cleaning frost on the outer surface of the separator housing (1) is fixedly installed on the inner surface of the movable ring (9), and a reciprocating screw (10) and a guide slide bar (11) are installed between the upper cover body (2) and the lower cover body (3), the reciprocating screw (10) and the movable ring (9) are connected by a threaded connection, and the guide slide bar (11) and the movable ring (9) are connected by a threaded connection; An automatically driven transmission mechanism is provided between the first baffle (7) and the reciprocating screw rod (10); A filter box (18) is fixedly installed between the exhaust pipe (6) and the upper cover body (2), and an adsorption sponge (19) for absorbing liquid is fixedly installed inside the filter box (18).

2. The gas-liquid separator for an automatic defrosting refrigeration system according to claim 1, characterized in that: The transmission mechanism comprises a central rotating shaft (12) which is longitudinally rotatably mounted in the middle position of the separator housing (1), and the central rotating shaft (12) is fixedly mounted between the first baffle (7), and the central rotating shaft (12) rotates synchronously with the reciprocating screw (10) via a synchronous belt (13) at its upper end.

3. The gas-liquid separator for an automatic defrosting refrigeration system according to claim 2, characterized in that: A second baffle plate (8) having an annular structure is fixedly mounted in the middle of the first baffle plate (7), and hole structures are provided inside the first baffle plate (7) and the second baffle plate (8), and upper blades (14) and lower blades (15) are respectively fixedly mounted on the outer surfaces of the upper and lower ends of the second baffle plate (8).

4. The gas-liquid separator for an automatic defrosting refrigeration system according to claim 3, characterized in that: The position of the upper blade (14) corresponds to the upper end position of the liquid inlet pipe (4), and the position of the lower blade (15) corresponds to the position of the lifting pipe (16), and the lifting pipe (16) is fixedly mounted on the outside of the separator housing (1).

5. The gas-liquid separator for an automatic defrosting refrigeration system according to claim 4, characterized in that: A delivery pump (17) for secondary separation is fixedly mounted on the outside of the lifting pipe (16), and the positions of the lifting pipe (16) and the avoidance groove (902) provided in the movable ring (9) correspond to each other.

6. The gas-liquid separator for an automatic defrosting refrigeration system according to claim 1, characterized in that: A squeezing plate (20) for squeezing the adsorption sponge (19) is fixedly mounted on the side surface thereof, and a connecting rod (21) for driving the squeezing plate (20) to move is fixedly mounted on the outer surface thereof, and a through-type sliding structure is formed between the connecting rod (21) and the filter box (18).

7. The gas-liquid separator for an automatic defrosting refrigeration system according to claim 6, characterized in that: A return spring (22) is mounted on the outside of the connecting rod (21) for driving the connecting rod to return, and the return spring (22) is fixedly connected to the outer surface of the filter box (18). The connecting rod (21) and the squeezing cam (23) are mutually squeezed, and the squeezing cam (23) is fixedly mounted on the top of the central rotating shaft (12).

8. The gas-liquid separator for an automatic defrosting refrigeration system according to claim 1, characterized in that: A third baffle (24) installed transversely is provided at the lower end of the separator housing (1), and the third baffle (24) and the central rotating shaft (12) are interpenetrating without contact, and a connecting sleeve (25) is rotatably mounted at the middle position of the upper surface of the third baffle (24).

9. The gas-liquid separator for an automatic defrosting refrigeration system according to claim 8, characterized in that: A stirring rod (26) for stirring the liquid inside the separator housing (1) is fixedly mounted on the outer surface of the connecting sleeve (25), and a snap-fit ​​groove (27) is provided inside the connecting sleeve (25), and the snap-fit ​​groove (27) and a protruding structure on the outer surface of the lower end of the central rotating shaft (12) are snap-fitted with each other.

10. The gas-liquid separator for an automatic defrosting refrigeration system according to claim 9, characterized in that: The movable ring (9) is made of a magnetic material, the connecting sleeve (25) drives the third baffle plate (24) and the central rotating shaft (12) to form an up-and-down sliding structure, and a strong magnetic block (28) is fixedly mounted on the side of the third baffle plate (24), and the strong magnetic block (28) and the movable ring (9) are magnetically attracted to each other.

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