A gas-liquid separator with auxiliary heating function

Abstract

The present invention belongs to the field of refrigeration technology, and specifically relates to a gas-liquid separator with an auxiliary heating function, which includes a separation box, an air inlet pipe and an exhaust assembly installed on the top of the separation box; the exhaust assembly includes a main air outlet pipe and a connecting sleeve, the main air outlet pipe is connected to the oil return assembly through the connecting sleeve, the oil return assembly includes an oil return head and a rotating sleeve, and the oil return hole is provided on the oil return head. The oil return holes on the top of the oil return head of the invention are relatively sparse and have a smaller aperture, while the oil return holes on the bottom of the oil return head are relatively dense and have a larger aperture. Therefore, the oil layer at the bottom of the stratified liquid can more easily enter the oil return head through the oil return hole at the bottom of the oil return head. At the same time, the small-aperture oil return hole at the top of the oil return head can slow down the liquid refrigerant at the top of the stratified liquid from entering the oil return head. In combination with the direct heating of the liquid refrigerant by the heat collecting platform, the liquid refrigerant can be prevented from entering the compressor through the oil return head and the main air outlet pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigeration, and in particular relates to a gas-liquid separator with an auxiliary heating function. Background Art

[0002] A gas-liquid separator is installed between the evaporator and the compressor of the refrigeration system. Its function is to separate the liquid droplets in the medium, and then vaporize them in the gas-liquid separator before entering the compressor to prevent the liquid droplets from entering the compressor and causing "liquid shock" to the compressor.

[0003] When working, the gas-liquid separator needs to separate the gas-liquid mixture output by the evaporator. The gas refrigerant enters the compressor through the pipeline, while the liquid refrigerant and refrigeration oil sink to the bottom of the separator. The liquid refrigerant at the bottom of the separator needs to absorb heat and vaporize to enter the compressor. This process requires a large amount of heat to meet the vaporization requirements. If the heat source is insufficient, the compressor needs to provide greater suction to increase the vaporization speed, resulting in increased compressor energy consumption and reduced system efficiency. Therefore, the auxiliary heating function is very necessary for the gas-liquid separator.

[0004] For example, the invention patent with publication number CN114046618A heats the bottom of the separator through an auxiliary heating chamber, thereby providing a heat source for the vaporization of the liquid refrigerant. This solution has the following problems when used:

[0005] First, when the airflow inside the separator is stable, the greater density of the refrigerant oil than the refrigerant causes the liquid refrigerant and oil to separate at the bottom of the separator. In the gas-liquid separator, the denser oil tends to sink to the bottom, while the less dense refrigerant is more concentrated in the upper layer. During the heating process at the bottom of the separator, heat must be transferred through the oil layer to the liquid refrigerant, reducing the liquid refrigerant's vaporization efficiency and causing liquid accumulation at the bottom of the separator.

[0006] Second, due to the stratification of liquid refrigerant and refrigeration oil at the bottom of the separator, the gasification efficiency of the liquid refrigerant is reduced. When the oil enters the pipeline through the oil return hole, the liquid refrigerant will enter the pipeline together with the oil and be sucked into the compressor through the pipeline, causing the liquid refrigerant to hit the compressor. Summary of the Invention

[0007] The purpose of the present invention is to provide a gas-liquid separator with an auxiliary heating function to address the shortcomings of the prior art and to solve the technical problems in the prior art.

[0008] The purpose of the present invention can be achieved through the following technical solutions: a gas-liquid separator with auxiliary heating function, which includes a separation box, an air inlet pipe and an exhaust assembly installed on the top of the separation box, the air inlet pipe is connected to the evaporator, and the exhaust assembly is connected to the compressor; the exhaust assembly includes a main air outlet pipe and a connecting sleeve, the main air outlet pipe is connected to the oil return assembly through the connecting sleeve, the oil return assembly includes an oil return head and a rotating sleeve, a threaded ring groove is provided in the connecting sleeve, the rotating sleeve slides with the threaded ring groove through the guide block thereon, and the oil return hole is provided on the oil return head, and the number of the oil return holes gradually increases from the top to the bottom of the oil return head. Added; a heat collecting assembly is installed inside the separation box, and the heat collecting assembly includes a partition plate, a heat conducting plate and a side plate. The partition plate divides the internal space of the separation box into a separation chamber and a heating chamber. The oil return head is rotatably installed on the partition plate, and a cylinder is installed at the bottom of the separation box. The cylinder drives the partition plate to rise and fall. The exhaust assembly and the oil return assembly are arranged in the separation chamber, and a heat conducting plate is slidably installed in the heating chamber. A heat collecting platform is installed on the heat conducting plate. Side plates are installed on the side walls of the heating chamber. A heating plate is rotatably installed on the side plates. A gear shaft is installed on the heating plate. A rack plate is installed at the bottom of the partition plate, and the rack plate is meshed with the gear shaft.

[0009] As a further optimization or improvement of this solution, the exhaust assembly also includes a side air outlet pipe, which is connected to the main air outlet pipe and has an opening facing upward.

[0010] As a further optimization or improvement of this solution, ventilation holes are provided on the side walls of the heating chamber.

[0011] As a further optimization or improvement of this solution, a guide sleeve is installed on the side plate, and the guide sleeve is slidably engaged with the rack plate.

[0012] As a further optimization or improvement of this solution, an internal gear ring is installed in the oil return head, and the oil return head is transmission-connected to the cleaning assembly through the internal gear ring. The cleaning assembly includes a fixed rod and a cleaning bucket. One end of the fixed rod is fixedly mounted on the partition plate, and the other end is connected to the cleaning bucket.

[0013] As a further optimization or improvement of this solution, a cleaning block is slidably installed in the cleaning barrel, a driven convex roller is rotatably installed in the cleaning barrel, a fixed block is installed at the bottom of the cleaning barrel, a bottom block is installed at the bottom of the driven convex roller, and an arc spring is installed between the bottom block and the fixed block.

[0014] As a further optimization or improvement of this solution, an active convex roller is rotatably installed in the cleaning barrel, a gear is installed on the active convex roller, the gear is engaged with the inner gear ring, a telescopic push plate is installed at the bottom of the active convex roller, and a fixed push plate is installed on the top of the driven convex roller. The active convex roller drives the driven convex roller to rotate through the telescopic push plate, so that the active convex roller and the driven convex roller drive the cleaning block to be ejected to the outside of the cleaning barrel.

[0015] Beneficial effects of the present invention:

[0016] (1) The present invention uses a cylinder to drive the partition plate and the rack plate to move downward. Under the action of the meshing of the rack plate and the gear shaft, the partition plate moves downward to drive the heating plate to rotate, so that the heating plate rotates from the horizontal direction to the vertical direction. As the partition plate moves downward, the heat collecting platform on the heat conducting plate protrudes from the partition plate, so that the heat collecting platform is placed in the layered liquid at the bottom of the separation chamber. As the partition plate continues to move downward, the partition plate drives the heat conducting plate to move downward synchronously, so that the heating plate enters the heat collecting platform. At this time, the heating plate directly transfers heat to the top layer of liquid refrigerant through the heat collecting platform, thereby reducing heat loss.

[0017] When the working environment of the heating plate is switched from the heating chamber to the heat collecting platform, the working space of the heating plate is reduced, the heating efficiency of the heating plate is increased, and the vaporization of the liquid refrigerant on the top layer is accelerated, preventing the refrigerant liquid droplets from entering the main outlet pipe through the oil return hole and being sucked into the compressor.

[0018] (2) The oil return holes at the top of the oil return head of the present invention are relatively sparse and have a smaller aperture, while the oil return holes at the bottom of the oil return head are relatively dense and have a larger aperture. Therefore, the oil layer at the bottom of the stratified liquid can more easily enter the oil return head through the oil return holes at the bottom of the oil return head. At the same time, the small-aperture oil return holes at the top of the oil return head can slow down the liquid refrigerant at the top of the stratified liquid from entering the oil return head. Combined with the direct heating of the liquid refrigerant by the heat collecting platform, the liquid refrigerant can be prevented from entering the compressor through the oil return head and the main outlet pipe, thus preventing the refrigerant droplets from hitting the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the connection structure between the exhaust component and the oil return component.

[0022] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0023] Figure 4 Schematic diagram of the overall structure of the exhaust assembly.

[0024] Figure 5 This is an exploded view of the exhaust component structure.

[0025] Figure 6 Schematic diagram of the internal structure of the oil return head.

[0026] Figure 7 It is a cross-sectional view of the structure of the cleaning barrel.

[0027] Figure 8 for Figure 7 A magnified view of the structure of part A.

[0028] Figure 9 Schematic diagram of the internal structure of the cleaning barrel.

[0029] Figure 10 for Figure 9 A magnified view of the structure of part B.

[0030] Figure 11 This is an exploded diagram of the solar collector component structure.

[0031] Figure 12 It is a cross-sectional view of the overall structure of the heat collecting assembly.

[0032] Figure 13 This is the transmission connection diagram between the gear shaft and the rack plate.

[0033] The following are marked in the figure: 1. Separation box; 101. Separation chamber; 102. Heating chamber; 103. Air vent; 2. Exhaust assembly; 201. Side air outlet pipe; 202. Main air outlet pipe; 203. Connecting sleeve; 204. Threaded ring groove; 3. Air inlet pipe; 4. Cylinder; 5. Oil return assembly; 501. Oil return head; 502. Rotating sleeve; 503. Guide block; 504. Internal gear ring; 505. Oil return hole; 6. Heat collection assembly; 601. Separator plate; 602, heat conduction plate; 603, side plate; 604, heat collecting platform; 605, rack plate; 606, heating plate; 607, gear shaft; 608, guide sleeve; 8, cleaning assembly; 801, fixed rod; 802, cleaning barrel; 803, gear; 804, active convex roller; 805, driven convex roller; 806, cleaning block; 808, telescopic push plate; 809, fixed push plate; 810, fixed block; 811, bottom block; 812, arc spring. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0035] See also Figures 1-4 , Figure 11-13, a gas-liquid separator with auxiliary heating function, which includes a separation box 1, an air inlet pipe 3 and an exhaust assembly 2 are installed on the top of the separation box 1, the air inlet pipe 3 is connected to the evaporator, and the exhaust assembly 2 is connected to the compressor; the exhaust assembly 2 includes a main air outlet pipe 202 and a sleeve 203, the main air outlet pipe 202 is connected to the oil return assembly 5 through the sleeve 203, the oil return assembly 5 includes an oil return head 501 and a rotating sleeve 502, a threaded ring groove 204 is provided in the sleeve 203, and the rotating sleeve 502 slides with the threaded ring groove 204 through the guide block 503 thereon, and the oil return hole 505 is provided on the oil return head 501, and the number of the oil return holes 505 gradually increases from the top to the bottom of the oil return head 501; a heat collecting assembly 6 is installed inside the separation box 1, and the heat collecting assembly 6 includes a partition plate 601, a heat conducting plate 602 and a side plate 603. The partition plate 601 divides the internal space of the separation box 1 into a separation chamber 101 and a heating chamber 102. The oil return head 501 is rotatably installed on the partition plate 601. The cylinder 4 is installed at the bottom of the separation box 1. The cylinder 4 drives the partition plate 601 to rise and fall. The exhaust component 2 and the oil return component 5 are arranged in the separation chamber 101. The heat conducting plate 602 is slidably installed in the heating chamber 102. The heat collecting platform 604 is installed on the heat conducting plate 602. The side plate 603 is installed on the side wall of the heating chamber 102. The heating plate 606 is rotatably installed on the side plate 603. The heating plate 606 is installed on the gear shaft 607. The rack plate 605 is installed at the bottom of the partition plate 601, and the rack plate 605 is engaged with the gear shaft 607.

[0036] Specifically, the exhaust assembly 2 further includes a side air outlet pipe 201 , which is connected to the main air outlet pipe 202 , with the pipe opening facing upward.

[0037] Specifically, a guide sleeve 608 is installed on the side plate 603 , and the guide sleeve 608 is slidably matched with the rack plate 605 .

[0038] It should be noted that, in the initial state, the heating plates 606 are all in a horizontal state, and the liquid at the bottom of the separation chamber 101 is heated by the heating plates 606 .

[0039] When the separator is in use, the air inlet pipe 3 is connected to the evaporator, and the exhaust assembly 2 is connected to the compressor. When the refrigeration system is running, the evaporator transports the gas-liquid mixture through the air inlet pipe 3 into the separation chamber 101. The liquid refrigerant and refrigeration oil fall to the bottom of the separation chamber 101 under the action of gravity, while the gaseous refrigerant floats on the top of the separation chamber 101. The suction generated by the operation of the compressor draws the gaseous refrigerant into the compressor through the side outlet pipe 201 and the main outlet pipe 202.

[0040] Regarding the phenomenon of liquid refrigerant and refrigeration oil being stratified at the bottom of the separation chamber 101, if the bottom of the separation chamber 101 is heated directly through the heating chamber 102, the heat will first be transferred to the oil layer, and then transferred from the oil layer to the liquid refrigerant, resulting in delayed vaporization of the liquid refrigerant, increased vaporization time, and heat loss.

[0041] Based on this, the present invention drives the partition plate 601 and the rack plate 605 downward by the cylinder 4, see Figure 11-13 Under the action of the meshing of the rack plate 605 and the gear shaft 607, the partition plate 601 moves downward to drive the heating plate 606 to rotate, so that the heating plate 606 rotates from the horizontal direction to the vertical direction. As the partition plate 601 moves downward, the heat collecting platform 604 on the heat conducting plate 602 protrudes from the partition plate 601, so that the heat collecting platform 604 is placed in the stratified liquid at the bottom of the separation chamber 101. As the partition plate 601 continues to move downward, the partition plate 601 drives the heat conducting plate 602 to move downward synchronously, so that the heating plate 606 enters the heat collecting platform 604. At this time, the heating plate 606 transfers the heat directly to the top liquid refrigerant through the heat collecting platform 604, reducing heat loss. When the working environment of the heating plate 606 is switched from the heating chamber 102 to the heat collecting platform 604, the working space of the heating plate 606 is reduced, and the heating efficiency of the heating plate 606 is increased, which accelerates the vaporization of the top liquid refrigerant and prevents the refrigerant liquid droplets from entering the main outlet pipe 202 through the return oil hole 505 and being sucked into the compressor.

[0042] It should be noted that the bottom opening of the heat collecting platform 604 can be provided with a pneumatic opening and closing structure to further reduce heat loss.

[0043] Specifically, the refrigerant oil at the bottom of the separation chamber 101 enters the compressor through the oil return hole 505 on the oil return head 501. The oil then enters the bottom of the main outlet pipe 202 through the suction force generated by the compressor. During this process, the liquid refrigerant at the bottom of the separation chamber 101 follows the refrigerant oil through the oil return hole 505 on the oil return head 501 and into the bottom of the main outlet pipe 202. The liquid refrigerant is then drawn into the compressor, causing refrigerant droplets to collide with the compressor.

[0044] Based on this, the oil return holes 505 at the top of the oil return head 501 of the present invention are arranged relatively sparsely and with smaller apertures, while the oil return holes 505 at the bottom of the oil return head 501 are arranged relatively densely and with larger apertures. Therefore, the oil layer at the bottom of the stratified liquid state can more easily enter the oil return head 501 through the oil return holes 505 at the bottom of the oil return head 501. At the same time, the small-aperture oil return holes 505 at the top of the oil return head 501 can slow the flow of liquid refrigerant from the top of the stratified liquid state into the oil return head 501. Combined with the direct heating of the liquid refrigerant by the heat collecting platform 604, this prevents the liquid refrigerant from entering the compressor through the oil return head 501 and the main outlet pipe 202.

[0045] See also Figure 2-Figure 3 The side wall of the heating chamber 102 is provided with an air vent 103 .

[0046] It should be noted that the purpose of the air holes 103 is to accelerate ventilation and heat dissipation of the heating chamber 102. When there is no liquid accumulation at the bottom of the separator, the heating plate 606 is closed in time and the air holes 103 are opened to prevent the heating plate 606 from continuously burning the bottom of the separator.

[0047] See also Figures 4-10 An inner gear ring 504 is installed in the oil return head 501, and the oil return head 501 is transmission-connected to the cleaning assembly 8 through the inner gear ring 504. The cleaning assembly 8 includes a fixed rod 801 and a cleaning bucket 802. One end of the fixed rod 801 is fixedly mounted on the partition plate 601, and the other end is connected to the cleaning bucket 802.

[0048] Specifically, a cleaning block 806 is slidably installed in the cleaning barrel 802, a driven convex roller 805 is rotatably installed in the cleaning barrel 802, a fixed block 810 is installed at the bottom of the cleaning barrel 802, a bottom block 811 is installed at the bottom of the driven convex roller 805, and an arc spring 812 is installed between the bottom block 811 and the fixed block 810.

[0049] Specifically, an active convex roller 804 is rotatably installed in the cleaning barrel 802, a gear 803 is installed on the active convex roller 804, the gear 803 is engaged with the inner gear ring 504, a telescopic push plate 808 is installed at the bottom of the active convex roller 804, and a fixed push plate 809 is installed on the top of the driven convex roller 805. The active convex roller 804 drives the driven convex roller 805 to rotate through the telescopic push plate 808, so that the active convex roller 804 and the driven convex roller 805 drive the cleaning block 806 to be ejected to the outside of the cleaning barrel 802.

[0050] It should be noted that Figure 4 For example, the oil return holes 505 are arranged in five layers. The top two layers of oil return holes 505 are small holes, while the bottom three layers of oil return holes 505 are large holes. The arrangement density of the large holes at the bottom is twice that of the small holes at the top. The arrangement density and number of layers of the oil return holes 505 will depend on actual use.

[0051] It should be noted that when the oil enters the oil return head 501 through the oil return hole 505, the impurities mixed in the oil can easily clog the oil return hole 505. Since the oil return holes 505 at the top and bottom of the oil return head 501 are arranged in different densities, the cleaning structure of the existing technology cannot effectively clean each oil return hole 505.

[0052] Based on this, when the present invention pulls down the partition plate 601 by the cylinder 4, see Figure 5 The partition plate 601 drives the oil return head 501 to move downward synchronously, and the guide block 503 slides in cooperation with the threaded ring groove 204, and the oil return head 501 moves downward and rotates. Since the cleaning barrel 802 is fixedly mounted on the partition plate 601 through the fixed rod 801, when the partition plate 601 drives the fixed rod 801 and the oil return head 501 to move downward synchronously, the oil return head 501 rotates, and the cleaning barrel 802 is relatively stationary.

[0053] See also Figure 6 , the oil return head 501 drives the gear 803 to rotate through the inner gear ring 504, see Figure 7 , gear 803 drives active convex roller 804 to rotate, see Figure 8 During the rotation of the active convex roller 804, the active convex roller 804 drives the fixed push plate 809 and the driven convex roller 805 to rotate synchronously through the telescopic push plate 808. At the same time, the arc spring 812 is stretched. As the active convex roller 804 and the driven convex roller 805 rotate synchronously, the convex surfaces of the active convex roller 804 and the driven convex roller 805 push the cleaning block 806 to move outward from the cleaning barrel 802. Figure 6 , so that the cleaning block 806 impacts the debris in the oil return hole 505, and then cleans the oil return hole 505. When the active convex roller 804 drives the driven convex roller 805 to rotate to the specified position, the arc spring 812 is stretched to the limit. At this time, the telescopic push plate 808 contracts under the rebound action of the arc spring 812, so that the telescopic push plate 808 is separated from the fixed push plate 809, and the driven convex roller 805 is reset under the action of the arc spring 812. In the process of the driven convex roller 805 resetting, the convex surface on the driven convex roller 805 pushes the cleaning block 806 to impact the oil return hole 505 at the bottom of the oil return head 501 again, and so on.

[0054] Therefore, during the process of the active convex roller 804 rotating one circle, the active convex roller 804 cleans the oil return hole 505 at the top of the oil return head 501 once through the cleaning block 806, and the driven convex roller 805 cleans the oil return hole 505 at the bottom of the oil return head 501 twice through the cleaning block 806, ensuring that the oil return head 501 can clean the oil return holes 505 with different layout densities at the top and bottom.

[0055] It should be noted that the active convex roller 804 and the driven convex roller 805 are made of magnetic material, and the cleaning block 806 is made of magnetic metal, so that one end of the cleaning block 806 is always in contact with the active convex roller 804 and the driven convex roller 805; a spring can also be added to the cleaning block 806 as an alternative.

[0056] The working principle of the present invention is as follows: When the separator is in use, the air inlet pipe 3 is connected to the evaporator, and the exhaust assembly 2 is connected to the compressor. When the refrigeration system is running, the evaporator transports the gas-liquid mixture into the separation chamber 101 through the air inlet pipe 3. The liquid refrigerant and refrigeration oil fall to the bottom of the separation chamber 101 under the action of gravity, and the gaseous refrigerant floats on the top of the separation chamber 101. The suction generated by the operation of the compressor draws the gaseous refrigerant into the compressor through the side outlet pipe 201 and the main outlet pipe 202.

[0057] Regarding the phenomenon of liquid refrigerant and refrigeration oil being stratified at the bottom of the separation chamber 101, if the bottom of the separation chamber 101 is heated directly through the heating chamber 102, the heat will first be transferred to the oil layer, and then transferred from the oil layer to the liquid refrigerant, resulting in delayed vaporization of the liquid refrigerant, increased vaporization time, and heat loss.

[0058] Based on this, the present invention drives the partition plate 601 and the rack plate 605 downward by the cylinder 4, see Figure 11-13 Under the action of the meshing of the rack plate 605 and the gear shaft 607, the partition plate 601 moves downward to drive the heating plate 606 to rotate, so that the heating plate 606 rotates from the horizontal direction to the vertical direction. As the partition plate 601 moves downward, the heat collecting platform 604 on the heat conducting plate 602 protrudes from the partition plate 601, so that the heat collecting platform 604 is placed in the stratified liquid at the bottom of the separation chamber 101. As the partition plate 601 continues to move downward, the partition plate 601 drives the heat conducting plate 602 to move downward synchronously, so that the heating plate 606 enters the heat collecting platform 604. At this time, the heating plate 606 transfers the heat directly to the top liquid refrigerant through the heat collecting platform 604, reducing heat loss. When the working environment of the heating plate 606 is switched from the heating chamber 102 to the heat collecting platform 604, the working space of the heating plate 606 is reduced, and the heating efficiency of the heating plate 606 is increased, which accelerates the vaporization of the top liquid refrigerant and prevents the refrigerant liquid droplets from entering the main outlet pipe 202 through the return oil hole 505 and being sucked into the compressor.

[0059] Specifically, the refrigerant oil at the bottom of the separation chamber 101 enters the compressor through the oil return hole 505 on the oil return head 501. The oil then enters the bottom of the main outlet pipe 202 through the suction force generated by the compressor. During this process, the liquid refrigerant at the bottom of the separation chamber 101 follows the refrigerant oil through the oil return hole 505 on the oil return head 501 and into the bottom of the main outlet pipe 202. The liquid refrigerant is then drawn into the compressor, causing refrigerant droplets to collide with the compressor.

[0060] Based on this, the oil return holes 505 at the top of the oil return head 501 of the present invention are arranged relatively sparsely and with smaller apertures, while the oil return holes 505 at the bottom of the oil return head 501 are arranged relatively densely and with larger apertures. Therefore, the oil layer at the bottom of the stratified liquid state can more easily enter the oil return head 501 through the oil return holes 505 at the bottom of the oil return head 501. At the same time, the small-aperture oil return holes 505 at the top of the oil return head 501 can slow the flow of liquid refrigerant from the top of the stratified liquid state into the oil return head 501. Combined with the direct heating of the liquid refrigerant by the heat collecting platform 604, this prevents the liquid refrigerant from entering the compressor through the oil return head 501 and the main outlet pipe 202.

[0061] Specifically, when the oil enters the oil return head 501 through the oil return hole 505, impurities mixed in the oil can easily clog the oil return hole 505. Since the oil return holes 505 at the top and bottom of the oil return head 501 are arranged in different densities, the cleaning structure of the existing technology cannot effectively clean each oil return hole 505.

[0062] Based on this, when the present invention pulls down the partition plate 601 by the cylinder 4, see Figure 5 The partition plate 601 drives the oil return head 501 to move downward synchronously, and the guide block 503 slides in cooperation with the threaded ring groove 204, and the oil return head 501 moves downward and rotates. Since the cleaning barrel 802 is fixedly mounted on the partition plate 601 through the fixed rod 801, when the partition plate 601 drives the fixed rod 801 and the oil return head 501 to move downward synchronously, the oil return head 501 rotates, and the cleaning barrel 802 is relatively stationary.

[0063] See also Figure 6 , the oil return head 501 drives the gear 803 to rotate through the inner gear ring 504, see Figure 7 , gear 803 drives active convex roller 804 to rotate, see Figure 8 During the rotation of the active convex roller 804, the active convex roller 804 drives the fixed push plate 809 and the driven convex roller 805 to rotate synchronously through the telescopic push plate 808. At the same time, the arc spring 812 is stretched. As the active convex roller 804 and the driven convex roller 805 rotate synchronously, the convex surfaces of the active convex roller 804 and the driven convex roller 805 push the cleaning block 806 to move outward from the cleaning barrel 802. Figure 6 , so that the cleaning block 806 impacts the debris in the oil return hole 505, and then cleans the oil return hole 505. When the active convex roller 804 drives the driven convex roller 805 to rotate to the specified position, the arc spring 812 is stretched to the limit. At this time, the telescopic push plate 808 contracts under the rebound action of the arc spring 812, so that the telescopic push plate 808 is separated from the fixed push plate 809, and the driven convex roller 805 is reset under the action of the arc spring 812. In the process of the driven convex roller 805 resetting, the convex surface on the driven convex roller 805 pushes the cleaning block 806 to impact the oil return hole 505 at the bottom of the oil return head 501 again, and so on.

[0064] Therefore, during the process of the active convex roller 804 rotating one circle, the active convex roller 804 cleans the oil return hole 505 at the top of the oil return head 501 once through the cleaning block 806, and the driven convex roller 805 cleans the oil return hole 505 at the bottom of the oil return head 501 twice through the cleaning block 806, ensuring that the oil return head 501 can clean the oil return holes 505 with different layout densities at the top and bottom.

[0065] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A gas-liquid separator with auxiliary heating function, characterized in that: It comprises a separation box (1), an air intake pipe (3) and an exhaust assembly (2) are installed on the top of the separation box (1), the air intake pipe (3) is connected to the evaporator, and the exhaust assembly (2) is connected to the compressor; The exhaust assembly (2) includes a main air outlet pipe (202) and a connecting sleeve (203), the main air outlet pipe (202) is connected to the oil return assembly (5) through the connecting sleeve (203), the oil return assembly (5) includes an oil return head (501) and a rotating sleeve (502), a threaded ring groove (204) is provided in the connecting sleeve (203), the rotating sleeve (502) is slidably engaged with the threaded ring groove (204) through a guide block (503) thereon, and the oil return head (501) is provided with oil return holes (505), and the number of the oil return holes (505) gradually increases from the top to the bottom of the oil return head (501); The separation box (1) is internally installed with a heat collecting assembly (6), which comprises a partition plate (601), a heat conducting plate (602) and a side plate (603). The partition plate (601) divides the internal space of the separation box (1) into a separation chamber (101) and a heating chamber (102). The oil return head (501) is rotatably installed on the partition plate (601). A cylinder (4) is installed at the bottom of the separation box (1). The cylinder (4) drives the partition plate (601) to rise and fall. The exhaust assembly (2) and the return oil head (501) are connected to the separation box (1). The oil assembly (5) is arranged in the separation chamber (101), a heat conducting plate (602) is slidably installed in the heating chamber (102), a heat collecting platform (604) is installed on the heat conducting plate (602), a side plate (603) is installed on the side wall of the heating chamber (102), a heating plate (606) is rotatably installed on the side plate (603), a gear shaft (607) is installed on the heating plate (606), a rack plate (605) is installed at the bottom of the separation plate (601), and the rack plate (605) is meshed with the gear shaft (607); The partition plate (601) and the rack plate (605) are driven downward by the cylinder (4), and the heat collecting platform (604) on the heat conducting plate (602) protrudes from the partition plate (601), so that the heat collecting platform (604) is placed in the layered liquid at the bottom of the separation chamber (101). As the partition plate (601) continues to move downward, the partition plate (601) drives the heat conducting plate (602) to move downward synchronously. At this time, the heating plate (606) directly transfers heat to the top layer of liquid refrigerant through the heat collecting platform (604).

2. The gas-liquid separator with auxiliary heating function according to claim 1, characterized in that: The exhaust assembly (2) further comprises a side air outlet pipe (201), the side air outlet pipe (201) being in communication with the main air outlet pipe (202), with the pipe opening facing upward.

3. The gas-liquid separator with auxiliary heating function according to claim 1, characterized in that: A ventilation hole (103) is provided on the side wall of the heating chamber (102).

4. The gas-liquid separator with auxiliary heating function according to claim 1, characterized in that: A guide sleeve (608) is installed on the side plate (603), and the guide sleeve (608) is slidably matched with the rack plate (605).

5. The gas-liquid separator with auxiliary heating function according to claim 1, characterized in that: An inner gear ring (504) is installed in the oil return head (501), and the oil return head (501) is transmission-connected to the cleaning assembly (8) via the inner gear ring (504). The cleaning assembly (8) comprises a fixed rod (801) and a cleaning bucket (802). One end of the fixed rod (801) is fixedly mounted on the partition plate (601), and the other end is connected to the cleaning bucket (802).

6. The gas-liquid separator with auxiliary heating function according to claim 5, characterized in that: A cleaning block (806) is slidably mounted in the cleaning barrel (802), a driven convex roller (805) is rotatably mounted in the cleaning barrel (802), a fixed block (810) is mounted at the bottom of the cleaning barrel (802), a bottom block (811) is mounted at the bottom of the driven convex roller (805), and an arc spring (812) is mounted between the bottom block (811) and the fixed block (810).

7. The gas-liquid separator with auxiliary heating function according to claim 6, characterized in that: An active convex roller (804) is rotatably mounted in the cleaning barrel (802), a gear (803) is mounted on the active convex roller (804), the gear (803) meshing with the inner gear ring (504), a telescopic push plate (808) being mounted on the bottom of the active convex roller (804), and a fixed push plate (809) being mounted on the top of the driven convex roller (805), the active convex roller (804) driving the driven convex roller (805) to rotate via the telescopic push plate (808), so that the active convex roller (804) and the driven convex roller (805) drive the cleaning block (806) to be ejected outward from the cleaning barrel (802).

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