Liquid storage siphon oil cooling device

Abstract

The application relates to a liquid storage type siphon oil cooling device and belongs to the technical field of refrigeration equipment, which comprises a main liquid storage tank body, the side surface of the main liquid storage tank body is respectively provided with a liquid falling pipe and a plurality of system interfaces, the top of the main liquid storage tank body is respectively provided with a siphon cavity pipe and a gas return pipe, the top of the main liquid storage tank body is provided with the siphon cavity pipe, a special siphon cavity is integrated, the volume of the siphon cavity accounts for about 5% of the total volume of the whole container, through the layout of the cavity-on-cavity, function partition is realized, due to the space expansion and the change of flow velocity, the gas and liquid are sharply flashed and separated, in the siphon cavity, a large amount of gas generated by flashing carries lubricating oil, the lubricating oil is directly and efficiently transported back to the suction pipeline of the compressor through the gas return outlet at the top, the recovery of the lubricating oil is completed, the original function is realized, the overall installation space is reduced, and the floor space is smaller.

Description

Technical Field

[0001] This invention belongs to the field of refrigeration equipment technology, specifically relating to a liquid storage type siphon cooling oil device. Background Technology

[0002] A liquid storage tank is a container used to store liquid substances. Its working principle is mainly based on physical storage and pressure balance mechanisms. Through its structural design, the liquid storage tank ensures the safe storage of liquids under specific conditions while preventing leakage and contamination.

[0003] In traditional refrigeration systems, the liquid receiver (used to store and stably supply liquid refrigerant) and the siphon tank (used to recover lubricating oil from the compressor using flash gas) are two separate components. This separate design leads to a complex system structure, large footprint, high cost, and increased risk of leakage. Furthermore, traditional parallel units use multiple independent gas-liquid separators or a single large gas-liquid separator, resulting in a bulky system, high cost, decreased separation efficiency under partial load, and uneven oil return. Summary of the Invention

[0004] The present invention mainly addresses the technical problems existing in the prior art and provides a liquid storage type siphon cooling oil device.

[0005] The above-mentioned technical problems of the present invention are mainly solved by the following technical solution: a liquid storage siphon cooling oil device, comprising a main liquid storage tank, characterized in that: a liquid drop pipe and multiple system interfaces are respectively provided on the side of the main liquid storage tank; a siphon chamber pipe and a return gas pipe are respectively provided on the top of the main liquid storage tank; a separator body is provided on one side of the main liquid storage tank; an air inlet pipe is inserted into the middle of the separator body; an air outlet U-shaped pipe is inserted into both sides of the air inlet pipe; baffles are respectively provided inside the main liquid storage tank on both sides corresponding to the air inlet pipe; an air inlet coil is sleeved at one end of the two air outlet U-shaped pipes inserted into the main liquid storage tank; an oil return hole is opened at the bottom of the air outlet U-shaped pipe; and a filter structure is provided at the oil return hole.

[0006] Preferably, a first valve is provided on one side of the siphon tube, a second valve is provided on one side of the return gas pipe, end caps are provided on both sides of the main liquid storage tank, and supports are respectively fitted on both sides of the surface of the main liquid storage tank.

[0007] Preferably, a plurality of maintenance valves are inserted into the top surface of the main liquid storage tank, and a safety valve is inserted into the other side of the main liquid storage tank.

[0008] Preferably, the vent U-shaped pipe includes an vent section, a sedimentation section, and an inlet section. The vent section extends outward through the top of the main liquid storage tank. The sedimentation section and the inlet section are both located inside the main liquid storage tank. The oil return hole is opened on the sedimentation section, and the filter structure is placed inside the sedimentation section. The top of the inlet section extends upward and is 10-20 cm below the top of the inner cavity of the main liquid storage tank. The inlet coil is sleeved on the inlet section.

[0009] Preferably, the filter structure includes a maintenance plate, which is inserted into the bottom of the sedimentation section of the outlet U-shaped pipe. Valve plates are provided on the top and bottom of both sides of the maintenance plate. The maintenance plate is snapped onto the outlet U-shaped pipe by the valve plates. The connection between the maintenance plate and the outlet U-shaped pipe is sealed with a rubber strip. A filter is provided above the corresponding oil return hole of the maintenance plate.

[0010] Preferably, the intake coil includes a plug-in portion that is sleeved with the intake section. The top of the plug-in portion is provided with an outwardly flared horn. The inner wall of the horn is provided with inner retention plates layer by layer from top to bottom. Multiple retention grooves are formed on the inner retention plates.

[0011] Preferably, the baffle includes an annular fixing seat fixedly installed on the inner wall of the main liquid storage tank, a turntable is inserted into the annular fixing seat, a middle cylinder is provided in the inner ring of the turntable, and multiple fan blades are provided in the middle cylinder corresponding to the inner wall of the turntable, with multiple openings on the fan blades.

[0012] The beneficial effects of this invention are as follows:

[0013] 1. By incorporating a dedicated siphon chamber at the top of the main liquid storage tank, the volume of which occupies approximately 5% of the total container volume, a "cavity-on-cavity" layout is achieved. This layout enables functional zoning. The gas-liquid two-phase flow (rich in lubricating oil) from the evaporator enters the top siphon chamber through the return gas pipe. Due to the sudden expansion of space and the change in flow velocity, the gas and liquid undergo violent flashing and separation. Within the siphon chamber, the large amount of gas generated by the flashing carries the lubricating oil and is directly and efficiently transported back to the compressor's suction line through the top return gas outlet, completing the recovery of the lubricating oil. This achieves the original function while reducing the overall installation space, resulting in a smaller footprint.

[0014] 2. Two sets of U-shaped outlet pipes are installed inside the main liquid storage tank. By placing the inlet pipe between the two outlet U-shaped pipes, the gas-liquid mixture can be evenly transported to the outlet U-shaped pipes on both sides. During the transportation process, a baffle plate is installed. The baffle plate rotates through multiple fan blades with openings inside the turntable. This can quickly impact the liquid of the gas-liquid mixture onto the surface of the fan blades, thereby throttling it and causing it to drip down to the bottom of the main liquid storage tank. The rotation of the turntable by the fast-flowing airflow increases the throttling effect. Throttling can also be achieved through the contact area without rotation, but the effect is better at high flow rates.

[0015] 3. By connecting an air inlet coil to one end of the air inlet section of the outlet U-shaped pipe, the gas concentration effect is increased through the flared mouth. At the same time, as the gas flows downward, the liquid in the gas-liquid mixture is further retained by the multi-layer internal retention plates set on the inner wall of the flared mouth, and the liquid is stored in conjunction with the retention tank.

[0016] 4. By setting a filter structure on the sedimentation section of the outlet U-shaped pipe, the filter structure can be easily replaced and disassembled through a detachable inspection plate. At the same time, placing the filter inside can effectively prevent the external filter from being immersed in liquid for a long time, thus giving the filter a longer service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a combined three-dimensional structure of the present invention;

[0018] Figure 2 This is a cross-sectional structural schematic diagram of the separator body of the present invention;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of the baffle plate of the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the intake coil of the present invention;

[0021] Figure 5 This is a three-dimensional structural diagram of the filter structure of the present invention.

[0022] In the diagram: 1. Main storage tank; 11. Drop pipe; 12. System interface; 2. Siphon chamber pipe; 21. First valve; 3. Return pipe; 31. Second valve; 4. Separator body; 41. Support; 42. Outlet U-shaped pipe; 421. Outlet section; 422. Sedimentation section; 423. Inlet section; 424. Filter structure; 4241. Inspection plate; 4242. Valve plate; 4243. Filter; 425. Inlet coil; 4251. Connector; 4252. Bell mouth; 4253. Inner retention plate; 4254. Retention groove; 43. Inlet pipe; 44. Safety valve; 45. Inspection valve; 46. Drain valve; 47. End cap; 48. Baffle plate; 481. Annular fixed seat; 482. Turntable; 483. Middle cylinder; 484. Fan blade; 485. Port. Detailed Implementation

[0023] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0024] Example: A liquid storage type siphon cooling oil device, such as Figures 1-5 As shown, the system includes a main liquid storage tank 1, a first valve 21 on one side of the siphon chamber pipe 2, a second valve 31 on one side of the return gas pipe 3, end caps 47 on both sides of the main liquid storage tank 1, supports 41 fitted onto both sides of the surface of the main liquid storage tank 1, multiple maintenance valves 45 inserted into the top surface of the main liquid storage tank 1, and a safety valve 44 inserted into the other side of the main liquid storage tank 1. A drain pipe 11 and multiple system interfaces 12 are respectively provided on the sides of the main liquid storage tank 1. The top of the main liquid storage tank 1 is respectively... The main liquid storage tank 1 is equipped with a siphon chamber 2 and a return air pipe 3. A separator body 4 is provided on one side of the main liquid storage tank 1. An air inlet pipe 43 is inserted into the middle of the separator body 4. Air outlet U-shaped pipes 42 are inserted into both sides of the air inlet pipe 43. Baffles 48 are provided inside the main liquid storage tank 1 on both sides corresponding to the air inlet pipe 43. An air inlet coil 425 is sleeved at one end of the two air outlet U-shaped pipes 42 inserted into the main liquid storage tank 1. An oil return hole is opened at the bottom of the air outlet U-shaped pipe 42. A filter structure 424 is provided at the oil return hole.

[0025] A dedicated siphon chamber is integrated by setting a siphon pipe 2 at the top of the main liquid storage tank 1. The volume of this siphon chamber accounts for approximately 5% of the total volume of the entire container. This "cavity-on-cavity" layout achieves functional zoning. The gas-liquid two-phase flow (rich in lubricating oil) from the evaporator enters the top siphon chamber through the return gas pipe 3. Due to the sudden expansion of space and the change in flow velocity, the gas and liquid undergo violent flashing and separation. In the siphon chamber, the large amount of gas generated by the flashing carries the lubricating oil and is directly and efficiently transported back to the compressor's suction line through the top return gas outlet, completing the recovery of the lubricating oil. This achieves the original function while reducing the overall installation space, resulting in a smaller footprint.

[0026] The venting U-shaped pipe 42 includes an venting section 421, a sedimentation section 422, and an inlet section 423. The venting section 421 extends outward from the top of the main liquid storage tank 1. The sedimentation section 422 and the inlet section 423 are both located inside the main liquid storage tank 1. The oil return hole is located on the sedimentation section 422, and the filter structure 424 is located inside the sedimentation section 422. The top of the inlet section 423 extends upward and is 10-20 cm below the top of the inner cavity of the main liquid storage tank 1. The inlet coil 425 is sleeved on the inlet section 423. Two sets of venting U-shaped pipes 42 are installed inside the main liquid storage tank 1, which connect the inlet pipe 43 to the two venting sections. Between the U-shaped tubes 42, the gas-liquid mixture can be evenly transported to the outlet U-shaped tubes 42 on both sides. During the transport process, by setting baffles 48, the baffles 48 rotate through multiple fan blades 484 with openings 485 built into the turntable 482. The liquid of the gas-liquid mixture can be quickly impacted on the surface of the fan blades 484, thereby throttling it and causing it to drip down to the bottom of the main liquid storage tank 1. The rotation of the turntable 482 is achieved by the fast-flowing air, which increases the throttling effect. At the same time, throttling can also be achieved through the contact area without rotation, but the effect is better at high flow rates.

[0027] The filter structure 424 includes a maintenance plate 4241, which is inserted into the bottom of the sedimentation section 422 of the outlet U-shaped pipe 42. Valve plates 4242 are provided on the top and bottom of both sides of the maintenance plate 4241. The maintenance plate 4241 is snapped onto the outlet U-shaped pipe 42 by the valve plates 4242. The connection between the maintenance plate 4241 and the outlet U-shaped pipe 42 is sealed with a rubber strip. A filter 4243 is provided above the corresponding oil return hole of the maintenance plate 4241. By providing the filter structure 424 on the sedimentation section 422 of the outlet U-shaped pipe 42, the filter structure 424 facilitates the replacement and disassembly of the built-in filter 4243 through the detachable maintenance plate 4241. At the same time, the filter 4243 is placed inside, which can effectively prevent the external filter from being immersed in liquid for a long time, so that the filter 4243 has a better service life.

[0028] The intake coil 425 includes a plug-in portion 4251 that is sleeved with the intake section 423. The top of the plug-in portion 4251 is provided with an outwardly flared flared mouth 4252. The inner wall of the flared mouth 4252 is provided with inner retention plates 4253 layer by layer from top to bottom. Multiple retention grooves 4254 are opened on the inner retention plates 4253. The outer extension of the inner retention plates 4253 is inclined downward at 20-30 degrees to facilitate the flow of stored liquid. By sleeved with the intake coil 425 at one end of the intake section 423 of the outlet U-shaped pipe 42, the gas gathering effect is increased through the flared mouth 4252. At the same time, during the downward flow of gas, the liquid in the gas-liquid mixture is further retained by the multiple layers of inner retention plates 4253 on the inner wall of the flared mouth 4252, and the liquid is stored in conjunction with the retention grooves 4254.

[0029] The baffle plate 48 includes an annular fixing seat 481 fixedly installed on the inner wall of the main liquid storage tank 1. A turntable 482 is inserted into the annular fixing seat 481. One end of the turntable 482 is inserted into one side of the annular fixing seat 481 and is limited by the annular fixing seat 481. The other end extends to the other side through the inner ring of the annular fixing seat 481. A middle cylinder 483 is provided in the inner ring of the turntable 482. Multiple fan blades 484 are provided in the middle cylinder 483 corresponding to the inner wall of the turntable 482. Multiple openings 485 are opened on the fan blades 484.

[0030] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and many variations are possible. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention should be considered within the protection scope of the present invention.

Claims

1. A liquid-storage type siphon cooling oil device, comprising a main liquid storage tank (1), characterized in that: The main liquid storage tank (1) is provided with a drop pipe (11) and multiple system interfaces (12) on its side. The main liquid storage tank (1) is provided with a siphon chamber pipe (2) and a return air pipe (3) on its top. A separator body (4) is provided on one side of the main liquid storage tank (1). An air inlet pipe (43) is inserted into the middle of the separator body (4). Air outlet U-shaped pipes (42) are inserted into both sides of the air inlet pipe (43). Baffles (48) are provided inside the main liquid storage tank (1) on both sides corresponding to the air inlet pipe (43). An air inlet coil (425) is sleeved at one end of the two air outlet U-shaped pipes (42) inserted into the main liquid storage tank (1). An oil return hole is opened at the bottom of the air outlet U-shaped pipe (42). A filter structure (424) is provided at the oil return hole.

2. The liquid storage type siphon cooling oil device according to claim 1, characterized in that: A first valve (21) is provided on one side of the siphon tube (2), a second valve (31) is provided on one side of the return gas pipe (3), a cap (47) is provided on both sides of the main liquid storage tank (1), and a support (41) is sleeved on both sides of the surface of the main liquid storage tank (1).

3. The liquid storage type siphon cooling oil device according to claim 1, characterized in that: Multiple maintenance valves (45) are inserted into the top surface of the main liquid storage tank (1), and a safety valve (44) is inserted into the other side of the main liquid storage tank (1).

4. The liquid storage type siphon cooling oil device according to claim 1, characterized in that: The outlet U-shaped pipe (42) includes an outlet section (421), a sedimentation section (422), and an inlet section (423). The outlet section (421) extends outward through the top of the main liquid storage tank (1). The sedimentation section (422) and the inlet section (423) are both located inside the main liquid storage tank (1). The oil return hole is opened on the sedimentation section (422), and the filter structure (424) is placed inside the sedimentation section (422). The top of the inlet section (423) extends upward and is 10-20 cm below the top of the inner cavity of the main liquid storage tank (1). The inlet coil (425) is sleeved on the inlet section (423).

5. The liquid storage type siphon cooling oil device according to claim 4, characterized in that: The filter structure (424) includes a maintenance plate (4241), which is inserted into the bottom of the sedimentation part (422) of the outlet U-shaped pipe (42). Valve plates (4242) are provided on the top and bottom of both sides of the maintenance plate (4241). The maintenance plate (4241) is snapped onto the outlet U-shaped pipe (42) by the valve plates (4242). The connection between the maintenance plate (4241) and the outlet U-shaped pipe (42) is sealed with a rubber strip. A filter (4243) is provided above the corresponding oil return hole of the maintenance plate (4241).

6. The liquid storage type siphon cooling oil device according to claim 4, characterized in that: The intake coil (425) includes a plug-in part (4251) that is connected to the intake part (423). The top of the plug-in part (4251) is provided with an outwardly flared horn mouth (4252). The inner wall of the horn mouth (4252) is provided with inner retention plates (4253) layer by layer from top to bottom. Multiple retention grooves (4254) are opened on the inner retention plates (4253).

7. The liquid storage type siphon cooling oil device according to claim 1, characterized in that: The baffle (48) includes an annular fixing seat (481) fixedly installed on the inner wall of the main liquid storage tank (1). A turntable (482) is inserted into the annular fixing seat (481). A middle cylinder (483) is provided in the inner ring of the turntable (482). Multiple fan blades (484) are provided on the middle cylinder (483) corresponding to the inner wall of the turntable (482). Multiple openings (485) are opened on the fan blades (484).

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