Gas-liquid integrated regenerator

Abstract

The present application relates to the technical field of regenerators, and discloses a gas separation and oil return integrated regenerator, which comprises a machine body, an internal cavity is arranged in the machine body, a heat exchange pipe is arranged in the internal cavity, a flow guide heat exchange structure is arranged on the heat exchange pipe, an oil return pipe for discharging liquid drops is arranged on the machine body, and a baffle structure is arranged in the internal cavity. The flow channel for cold gas is provided between the heat exchange pipe and the internal cavity, so that the cold gas can exchange heat with the hot fluid in the heat exchange pipe. The flow guide heat exchange structure is used to increase the concentrated heat exchange of the heat energy of the hot fluid. When the cold gas impacts on the baffle structure, the inertia centrifugal force effect or a sudden turn is used, so that the fine liquid drops or lubricating oil carried in the cold gas can be accumulated in the baffle structure to form water drop-shaped liquid drops or oil liquid, and the water drop-shaped liquid drops or oil liquid can flow to the internal cavity. The internal cavity is communicated with the oil return pipe, the water drop-shaped liquid drops or oil liquid can be discharged to the compressor through the oil return pipe, and the problem that the frozen oil liquid gathered in the gas separation part is difficult to return to the compressor is solved.

Description

Technical Field

[0001] This invention relates to the technical field of regenerators, and more specifically, to a regenerator that integrates gas separation and oil return. Background Technology

[0002] A regenerator, also known as a gas-liquid heat exchanger, is a heat exchange device used in Freon refrigeration systems to cool the high-pressure liquid before it enters the evaporator using refrigerant vapor from the evaporator. This process subcools the liquid refrigerant (hot fluid) and superheats the vapor.

[0003] In a regenerative refrigeration unit, the regenerator is an essential component. The regenerator is characterized by the alternating flow of cold and hot fluids through the same flow channel space, and the fluids achieve heat exchange through direct contact with the regenerator.

[0004] The main function of the compressor gas separator is to separate liquid droplets from the low-pressure vapor (cold gas) from the evaporator to ensure that the compressor draws in saturated vapor and avoids liquid slugging that could damage the compressor.

[0005] The existing regenerator and gas separator are two separate setups, and the existing gas separator has difficulty solving the problem of the refrigerant oil that accumulates inside the gas separator returning to the compressor. Summary of the Invention

[0006] The purpose of this invention is to provide a regenerator that integrates gas separation and oil return, aiming to solve the problem in the prior art where it is difficult to return the refrigerant oil that accumulates inside the gas separator to the compressor.

[0007] The present invention is implemented as follows: a gas separator and oil return integrated regenerator includes a body, the body having an internal cavity; the body is provided with a cold inlet pipe for cooling gas to enter the body and a cold outlet pipe for cooling gas to exit the body, the cold outlet pipe and the cold inlet pipe are connected through the internal cavity, the internal cavity is provided with a heat exchange tube for heat exchange of heating fluid, and the heat exchange tube is provided with a flow guiding heat exchange structure.

[0008] The heat exchange tube is provided with an inlet for the heating fluid to enter the machine body and an outlet for the heating fluid to exit the machine body, and the inlet and outlet are respectively exposed outside the machine body; the machine body is provided with an oil return pipe for discharging oil, the inner end of the oil return pipe is connected to the internal cavity, and the outer end of the oil return pipe is connected to the compressor; the internal cavity is provided with a baffle structure to increase the flow distance of the cold gas in the internal cavity, and the baffle structure abuts against the inner side wall of the internal cavity.

[0009] Furthermore, the flow deflector structure includes a longitudinal flow deflector and a transverse flow deflector. The longitudinal flow deflector abuts against the transverse flow deflector to form a T-shaped structure. The transverse flow deflector is located below the cold inlet pipe. The transverse flow deflector is provided with a transverse flow guide hole, which communicates with the cold inlet pipe. The longitudinal flow deflector is provided with a longitudinal flow guide hole, which communicates with the cold outlet pipe through the transverse flow guide hole.

[0010] Furthermore, the longitudinal drainage hole abuts against the bottom inner wall of the internal cavity.

[0011] Furthermore, the longitudinal baffle plate divides the internal cavity into a gas distribution cavity and a heat exchange cavity. The heat exchange cavity and the gas distribution cavity are connected through longitudinal drainage holes. The gas distribution cavity is connected to the cold outlet pipe and the oil return pipe, respectively. The heat exchange cavity is connected to the cold inlet pipe through transverse drainage holes. The heat exchange tube is located in the heat exchange cavity.

[0012] Furthermore, the heat exchange tube includes a U-shaped heat exchange section, an inlet straight section communicating with the liquid inlet, and an outlet straight section communicating with the liquid outlet. The two ends of the U-shaped heat exchange section are respectively connected to the inner ends of the inlet straight section and the outlet straight section. The outer ends of the inlet straight section and the outlet straight section are respectively exposed outside the machine body. The inlet straight section and the outlet straight section are respectively located inside the flow guiding heat exchange structure. The U-shaped heat exchange section is located in the internal cavity.

[0013] Furthermore, the outer wall of the U-shaped heat exchange section extends through the longitudinal baffle plate and is exposed in the gas separation chamber, while the inner wall of the U-shaped heat exchange section abuts against the transverse baffle plate and is exposed in the heat exchange chamber.

[0014] Furthermore, finned tubes are respectively fitted on the inlet straight section and the outlet straight section, and the two finned tubes extend along the length direction of the inlet straight section and the outlet straight section, respectively.

[0015] Furthermore, the heat exchange structure includes a hollow through-hole heating cylinder, which is arranged around the outer periphery of the finned tube. The inner wall of the heating cylinder has a plurality of heat-conducting fins extending toward and abutting the finned tube, and the plurality of heat-conducting fins are arranged at intervals around the inner wall of the heating cylinder.

[0016] The heat-conducting plates are arranged in a wave-like pattern, and heat collection channels for the flow of cooling gas are formed between adjacent heat-conducting plates.

[0017] Furthermore, the two heating cylinders are located on the upper and lower sides of the transverse baffle, respectively, and are located in the heat exchange chamber; the two heating cylinders are arranged opposite to the transverse drainage holes.

[0018] Furthermore, the transverse baffle plate has a flow-guiding end face facing the cold inlet pipe. The flow-guiding end face is recessed and inclined toward the transverse flow-guiding hole. The flow-guiding end face has a plurality of upwardly protruding first condensate strips. The plurality of first condensate strips are arranged at intervals around the outer periphery of the transverse flow-guiding hole.

[0019] The longitudinal baffle plate has a plurality of outwardly protruding second condensate strips, which extend longitudinally from the top of the longitudinal baffle plate to the bottom of the longitudinal baffle plate and are arranged at intervals around the longitudinal baffle plate in a circumferential manner.

[0020] Compared with existing technologies ， The gas separator and oil return integrated regenerator provided by this invention provides a flow channel for cold gas between the heat exchange tube and the internal cavity, allowing the cold gas to exchange heat with the hot fluid in the heat exchange tube. The flow-guiding heat exchange structure increases the concentrated heat exchange of the hot fluid. When the cold gas impacts the baffle structure, the inertial centrifugal force effect or a sudden change of direction causes the fine droplets or lubricating oil carried in the cold gas to accumulate in the baffle structure, forming water droplets or oil that flow into the internal cavity. The internal cavity is connected to the oil return pipe, through which the water droplets or oil are discharged into the compressor. This solves the problem of the gas separator having difficulty in handling the refrigerant oil that accumulates inside the gas separator and returns to the compressor. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the integrated gas separator and oil return regenerator provided by the present invention;

[0022] Figure 2 This is a three-dimensional cross-sectional schematic diagram of the integrated gas separator and oil return regenerator provided by the present invention;

[0023] Figure 3 This is a cross-sectional structural diagram of the integrated gas separator and oil return regenerator provided by the present invention;

[0024] Figure 4 This is a three-dimensional schematic diagram of the heat exchange tube and baffle structure provided by the present invention;

[0025] Figure 5 This is a schematic diagram of the flow-guiding heat exchange structure provided by the present invention.

[0026] In the diagram: Body 100, Cold Inlet Pipe 200, Cold Outlet Pipe 300, Internal Cavity 400, Oil Return Pipe 500, Heat Exchange Pipe 600, Baffle Structure 700, Guided Heat Exchange Structure 800, Gas Separation Chamber 401, Heat Exchange Chamber 402, U-shaped Heat Exchange Section 601, Inlet Straight Section 602, Outlet Straight Section 603, Finned Tube 604, Longitudinal Baffle Plate 701, Transverse Baffle Plate 702, Transverse Drain Hole 703, Longitudinal Drain Hole 704, Drain End Face 705, First Condensate Strip 706, Second Condensate Strip 707, Heating Cylinder 801, Heat Conducting Plate 802, Heat Collecting Channel 803. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0028] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0029] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0030] Reference Figure 1-5 The image shown is a preferred embodiment of the present invention.

[0031] The gas separator and oil return integrated regenerator includes a body 100, which has an internal cavity 400. The body 100 is provided with a cold inlet pipe 200 for cooling gas to enter the body 100 and a cold outlet pipe 300 for cooling gas to exit the body 100. The cold outlet pipe 300 and the cold inlet pipe 200 are connected through the internal cavity 400. The internal cavity 400 is provided with a heat exchange pipe 600 for heat exchange of the flowing heat fluid. The heat exchange pipe 600 is provided with a flow guiding heat exchange structure 800.

[0032] The heat exchange tube 600 is provided with an inlet for the heating fluid to enter the body 100 and an outlet for the heating fluid to exit the body 100. The inlet and outlet are respectively exposed outside the body 100. The body 100 is provided with an oil return pipe 500 for discharging oil. The inner end of the oil return pipe 500 is connected to the internal cavity 400, and the outer end of the oil return pipe 500 is connected to the compressor. The internal cavity 400 is provided with a baffle structure 700 to increase the flow distance of the cold gas in the internal cavity 400. The baffle structure 700 abuts against the inner wall of the internal cavity 400.

[0033] The aforementioned integrated gas separator and oil return regenerator provides a flow channel for cold gas between the heat exchange tube 600 and the internal cavity 400, allowing the cold gas to exchange heat with the hot fluid inside the heat exchange tube 600. The flow-guiding heat exchange structure 800 increases the concentrated heat exchange of the hot fluid. When the cold gas impacts the baffle structure 700, the inertial centrifugal force effect or a sudden change of direction causes the fine droplets or lubricating oil carried in the cold gas to accumulate in the baffle structure 700, forming water droplets or oil that flow to the internal cavity 400. The internal cavity 400 is connected to the oil return pipe 500, through which the water droplets or oil are discharged to the compressor. This solves the problem of the gas separator having difficulty in handling the refrigerant oil accumulated inside the gas separator returning to the compressor.

[0034] By using the baffle structure 700 to increase the flow distance of the cold gas in the internal cavity 400, the heat exchange time between the cold gas and the heat exchange tube 600 can be increased.

[0035] When the cold gas is a gaseous refrigerant and the hot fluid is a liquid refrigerant, the gaseous refrigerant enters the internal cavity 400 through the cold inlet pipe 200, while the liquid refrigerant enters the heat exchange tube 600 to increase the temperature of the heat exchange tube 600 body, so that the gaseous refrigerant and the liquid refrigerant can exchange heat in the internal cavity 400. The baffle structure 700 can increase the distance that the gaseous refrigerant flows in the internal cavity 400, thereby increasing the heat exchange time between the gaseous and liquid refrigerants.

[0036] When the saturated gaseous refrigerant enters the internal cavity 400, it is heated by the liquid refrigerant in the heat exchange tube 600, causing the gaseous refrigerant to heat up in the internal cavity 400 and increase its superheat. After passing through the baffle structure 700, the gaseous refrigerant carries tiny droplets or lubricating oil, which accumulate in the baffle structure 700 to form water droplets or oil. The water droplets or oil are affected by gravity and flow to the bottom of the internal cavity 400. The internal cavity 400 is connected to the oil return pipe 500, through which the water droplets or oil are discharged into the compressor. This process solves the problems of poor heat exchange effect of conventional regenerators and difficulty in returning the collected oil to the compressor in conventional gas separators, which leads to compressor oil shortage and damage.

[0037] In this embodiment, the baffle structure 700 includes a longitudinal baffle 701 and a transverse baffle 702. The longitudinal baffle 701 abuts against the transverse baffle 702 to form a T-shaped structure. The transverse baffle 702 is located below the cold inlet pipe 200. The transverse baffle 702 is provided with a transverse drainage hole 703, which communicates with the cold inlet pipe 200. The longitudinal baffle 701 is provided with a longitudinal drainage hole 704, and the transverse drainage hole 703 communicates with the cold outlet pipe 300 through the longitudinal drainage hole 704.

[0038] The baffle structure 700 uses a transverse baffle 702 to prevent the direct flow of cold gas through the heat exchange tube 600. The transverse baffle 702 uses a transverse guide hole 703 to allow the cold gas to pass through the circumference of the heat exchange tube 600 and then be discharged to the longitudinal guide hole 704. The longitudinal baffle 701 is used to increase the flow distance of the cold gas, so that the cold gas can contact the heat exchange tube 600 multiple times and absorb the heat energy on the heat exchange tube 600. The longitudinal guide hole 704 can guide the cold gas to the cold outlet pipe 300 and allow the cold gas to be discharged from the body 100.

[0039] The longitudinal drainage hole 704 abuts against the bottom inner wall of the internal cavity 400. In this way, droplets or oil generated during the separation of cold gas can be discharged into the return oil pipe 500 through the longitudinal drainage hole 704, preventing droplets or oil from accumulating in the internal cavity 400.

[0040] In this embodiment, the longitudinal baffle 701 divides the internal cavity 400 into a gas distribution cavity 401 and a heat exchange cavity 402. The heat exchange cavity 402 and the gas distribution cavity 401 are connected through a longitudinal drainage hole 704. The gas distribution cavity 401 is connected to the cold outlet pipe 300 and the oil return pipe 500, respectively. The heat exchange cavity 402 is connected to the cold inlet pipe 200 through a transverse drainage hole 703. The heat exchange tube 600 is located in the heat exchange cavity 402.

[0041] The internal cavity 400 provides space for heat exchange between the cold gas and the heat exchange tube 600 through the heat exchange cavity 402. When the cold gas flows at high speed, it will drive the fine liquid droplets or lubricating oil in the gaseous state to flow at high speed. When the cold gas suddenly slows down, the fine liquid droplets or lubricating oil in the gaseous state will accumulate and form liquefaction. The gas separation cavity 401 is used to make the cold gas suddenly slow down at high flow rate, so that the fine liquid droplets or lubricating oil in the gaseous state accumulate and form liquefaction, and then is discharged to the compressor through the oil return pipe 500.

[0042] In this embodiment, the heat exchange tube 600 includes a U-shaped heat exchange section 601, an inlet straight section 602 communicating with the liquid inlet, and an outlet straight section 603 communicating with the liquid outlet. The two ends of the U-shaped heat exchange section 601 are respectively connected to the inner ends of the inlet straight section 602 and the outlet straight section 603. The outer ends of the inlet straight section 602 and the outlet straight section 603 are respectively exposed outside the body 100. The inlet straight section 602 and the outlet straight section 603 are respectively located inside the flow guiding heat exchange structure 800. The U-shaped heat exchange section 601 is located in the internal cavity 400.

[0043] The heat exchange tube 600 uses the inlet straight section 602 to introduce the heating fluid into the U-shaped heat exchange section 601 for heat exchange, and then the heating fluid is discharged from the heat exchange tube 600 through the outlet straight section 603. The U-shaped heat exchange section 601 is located in the inner cavity 400, which can better exchange heat with the cold gas. The outer ends of the inlet straight section 602 and the outlet straight section 603 are used to provide interfaces for the entry and exit of the hot fluid.

[0044] In this embodiment, the outer wall of the U-shaped heat exchange section 601 extends through the longitudinal baffle 701 and is exposed in the gas separation chamber 401, while the inner wall of the U-shaped heat exchange section 601 abuts against the transverse baffle 702 and is exposed in the heat exchange chamber 402.

[0045] In this way, the temperature in the gas separation chamber 401 can also be increased, increasing the heat exchange time between the cold gas and the hot fluid. Furthermore, the U-shaped heat exchange section 601 is attached to the longitudinal baffle 701 and the transverse baffle 702, which can increase the temperature of the longitudinal baffle 701 and the transverse baffle 702, so that the cold gas can also carry away the heat energy on its surface when it flows.

[0046] In this embodiment, finned tubes 604 are respectively fitted on the inlet straight section 602 and the outlet straight section 603, and the two finned tubes 604 extend along the length direction of the inlet straight section 602 and the outlet straight section 603, respectively.

[0047] The straight section 602 and the straight section 603 are respectively connected by finned tubes 604 to increase the transfer and diffusion of heat energy of the hot fluid, thereby improving the heat exchange efficiency between the hot fluid and the cold gas. The heat exchange tube 600 uses finned tubes 604 to increase the heat exchange area of ​​the heat exchange tube 600, thereby improving the heat transfer coefficient.

[0048] In this embodiment, the heat exchange structure 800 includes a hollow through-hole heating cylinder 801. The heating cylinder 801 is arranged around the outer periphery of the finned tube 604. The inner wall of the heating cylinder 801 has a plurality of heat-conducting plates 802 extending toward and abutting the finned tube 604. The plurality of heat-conducting plates 802 are arranged at intervals around the inner wall of the heating cylinder 801.

[0049] The heat-conducting plates 802 are arranged in a wave-like pattern, and heat collection channels 803 for the flow of cooling gas are formed between adjacent heat-conducting plates 802.

[0050] The heat exchange structure 800 uses a heating cylinder 801 to wrap around the outer periphery of the finned tube 604. This allows the heat energy of the hot fluid to diffuse from the finned tube 604, and the heating cylinder 801 concentrates and covers it, reducing the heat energy loss during diffusion. The heating cylinder 801 uses heat-conducting fins 802 to increase heat collection. The heating cylinder 801 uses a heat-collecting channel 803 to supply the flow of cold gas. The heating cylinder 801 uses corrugated heat-conducting fins 802 to increase the contact area of ​​the cold gas, thereby increasing the contact heat exchange area of ​​the cold gas. This allows the cold gas to improve heat exchange efficiency and reduce heat loss during heat exchange.

[0051] In this embodiment, the two heating cylinders 801 are located on the upper and lower sides of the transverse baffle 702, respectively, and the two heating cylinders 801 are located in the heat exchange chamber 402; the two heating cylinders 801 are arranged opposite to the transverse guide hole 703.

[0052] The heat exchange tube 600 utilizes two heating cylinders 801 arranged vertically on the transverse baffle 702, allowing the cold gas to undergo heat exchange in one heating cylinder 801 and then in the other heating cylinder 801, increasing the heat exchange time and efficiency between the cold gas and the hot fluid. At the same time, the transverse baffle 702 increases the flow distance of the cold gas, thereby improving the heat exchange efficiency of the cold gas in multiple ways.

[0053] In this way, the cold gas can directly contact and exchange heat with another heating cylinder 801 through the transverse drainage hole 703, thus achieving long-distance heat exchange for the cold gas.

[0054] In this embodiment, the transverse baffle 702 has a flow-guiding end face 705 facing the cold inlet pipe 200. The flow-guiding end face 705 is recessed and inclined toward the transverse flow-guiding hole 703. The flow-guiding end face 705 has a plurality of upwardly protruding first condensate strips 706. The plurality of first condensate strips 706 are arranged at intervals around the outer periphery of the transverse flow-guiding hole 703.

[0055] The longitudinal baffle 701 has a plurality of outwardly protruding second condensate strips 707, which extend longitudinally from the top to the bottom of the longitudinal baffle 701 and are arranged in a longitudinal manner. The plurality of second condensate strips 707 are arranged at intervals around the longitudinal baffle 701 in a circumferential manner.

[0056] The transverse baffle 702 uses the first condensate strip 706 on the flow-guiding end face 705 to collect fine droplets or lubricating oil carried in the cold gas. As the cold gas passes through repeatedly, it accumulates in the first condensate strip 706, forming water droplets or oil. Due to gravity and the concave and inclined arrangement of the flow-guiding end face 705 towards the transverse flow-guiding hole 703, the water droplets or oil are guided to the bottom of the internal cavity 400. The internal cavity 400 is connected to the oil return pipe 500, through which the water droplets or oil are discharged into the compressor, improving the gas separation efficiency of the machine body 100.

[0057] The longitudinal baffle 701 also uses the second condensate strip 707 to collect the fine droplets or lubricating oil carried in the cold gas. After the cold gas passes through multiple times, it will accumulate in the second condensate strip 707 to form water droplets or oil. Under the influence of gravity, the water droplets or oil will flow vertically along the second condensate strip 707 to the bottom of the internal cavity 400. The internal cavity 400 is connected to the oil return pipe 500. The water droplets or oil are discharged into the compressor through the oil return pipe 500, thereby improving the gas separation efficiency of the machine body 100.

[0058] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A regenerator integrating gas separation and oil return, characterized in that, The device includes a body, which has an internal cavity; the body is provided with a cold inlet pipe for cooling gas to enter the body and a cold outlet pipe for cooling gas to exit the body, the cold outlet pipe and the cold inlet pipe are connected through the internal cavity, and the internal cavity is provided with a heat exchange pipe for heat exchange of heating fluid, and the heat exchange pipe is provided with a flow guiding heat exchange structure. The heat exchange tube is provided with an inlet for the heating fluid to enter the machine body and an outlet for the heating fluid to exit the machine body, and the inlet and outlet are respectively exposed outside the machine body; the machine body is provided with an oil return pipe for discharging oil, the inner end of the oil return pipe is connected to the internal cavity, and the outer end of the oil return pipe is connected to the compressor; the internal cavity is provided with a baffle structure to increase the flow distance of the cold gas in the internal cavity, and the baffle structure abuts against the inner wall of the internal cavity; The flow deflector structure includes a longitudinal flow deflector and a transverse flow deflector. The longitudinal flow deflector abuts against the transverse flow deflector to form a T-shaped structure. The transverse flow deflector is located below the cold inlet pipe and has a transverse flow guide hole that communicates with the cold inlet pipe. The longitudinal flow deflector has a longitudinal flow guide hole that communicates with the cold outlet pipe. The transverse baffle plate has a flow-guiding end face facing the cold inlet pipe. The flow-guiding end face is recessed and inclined towards the transverse flow-guiding hole. The flow-guiding end face has a plurality of upwardly protruding first condensate strips. The plurality of first condensate strips are arranged at intervals around the outer periphery of the transverse flow-guiding hole. The longitudinal baffle plate has a plurality of outwardly protruding second condensate strips, which extend longitudinally from the top of the longitudinal baffle plate to the bottom of the longitudinal baffle plate and are arranged at intervals around the longitudinal baffle plate in a circumferential manner.

2. The integrated gas separation and oil return regenerator as described in claim 1, characterized in that, The longitudinal drainage hole abuts against the bottom inner wall of the internal cavity.

3. The integrated gas separation and oil return regenerator as described in claim 1, characterized in that, The longitudinal baffle plate divides the internal cavity into a gas distribution cavity and a heat exchange cavity. The heat exchange cavity and the gas distribution cavity are connected by a longitudinal drainage hole. The gas distribution cavity is connected to the cold outlet pipe and the oil return pipe, respectively. The heat exchange cavity is connected to the cold inlet pipe by a transverse drainage hole. The heat exchange tube is located in the heat exchange cavity.

4. The integrated gas separation and oil return regenerator as described in any one of claims 1 to 3, characterized in that, The heat exchange tube includes a U-shaped heat exchange section, an inlet straight section connected to the liquid inlet, and an outlet straight section connected to the liquid outlet. The two ends of the U-shaped heat exchange section are respectively connected to the inner ends of the inlet straight section and the outlet straight section. The outer ends of the inlet straight section and the outlet straight section are respectively exposed outside the machine body. The inlet straight section and the outlet straight section are respectively located inside the flow guiding heat exchange structure. The U-shaped heat exchange section is located in the internal cavity.

5. The integrated gas separation and oil return regenerator as described in claim 4, characterized in that, The outer wall of the U-shaped heat exchange section extends through the longitudinal baffle and is exposed in the gas separation chamber, while the inner wall of the U-shaped heat exchange section abuts against the transverse baffle and is exposed in the heat exchange chamber.

6. The integrated gas separation and oil return regenerator as described in claim 4, characterized in that, Finned tubes are respectively fitted on the inlet straight section and the outlet straight section, and the two finned tubes are arranged to extend along the length direction of the inlet straight section and the outlet straight section, respectively.

7. The integrated gas separation and oil return regenerator as described in claim 6, characterized in that, The heat exchange structure includes a hollow, through-hole heating cylinder, which is arranged around the outer periphery of the finned tube. The inner wall of the heating cylinder has a plurality of heat-conducting fins extending toward and abutting the finned tube. The plurality of heat-conducting fins are arranged at intervals around the inner wall of the heating cylinder. The heat-conducting plates are arranged in a wave-like pattern, and heat collection channels for the flow of cooling gas are formed between adjacent heat-conducting plates.

8. The integrated gas separation and oil return regenerator as described in claim 7, characterized in that, The two heating cylinders are located on the upper and lower sides of the transverse baffle, respectively, and are located in the heat exchange chamber; the two heating cylinders are arranged opposite to the transverse drainage holes.

Images