Carbon dioxide heat pump high-efficiency oil separation system

Abstract

The utility model provides a kind of carbon dioxide heat pump high-efficiency oil separation system, including cylinder, still including the oil separation component being set to the inside of cylinder and the exhaust component being set to cylinder top for discharging after the gas of separated oil drop, the oil separation component includes the conical cylinder being set to the inside of cylinder and the oil separation structure being set to the inside of conical cylinder, the oil separation structure includes the rotating shaft being rotatably connected on the surface of cylinder, the bottom end of rotating shaft is rotatably connected with the inner bottom wall of cylinder.The utility model is cooperated by the oil separation component and exhaust component of being set, can agitate the mixed gas entering the inside of conical cylinder to make it produce centrifugal acceleration, oil drop in mixed gas is thrown to conical cylinder under centrifugal force and can fall into oil guide pipe with the fast falling of conical cylinder inner wall inclination radian, can drive mounting cylinder and fan blade rotation simultaneously, can suck inside conical cylinder, can let the mixed gas after separating oil drop fast discharge inside conical cylinder.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a high-efficiency oil separation system for a carbon dioxide heat pump. Background Technology

[0002] During the operation of a heat pump system, the high-pressure vapor discharged from the compressor often contains a certain amount of lubricating oil. If this lubricating oil enters the condenser and evaporator along with the refrigerant, it will form an oil film on the heat transfer wall surface, increasing thermal resistance and thus reducing the heat transfer and cooling effects. Therefore, it is necessary to use an oil separator to effectively separate the lubricating oil from the refrigerant vapor, thereby protecting the compressor and other core components from oil and gas corrosion, while improving the system's heat transfer efficiency and operational stability.

[0003] Application No. 202221797867.0 discloses a high-efficiency oil separator for a carbon dioxide refrigeration system, comprising a separator cylinder, a plug-in hole, a fixing mesh, a guide plate, a buffer chamber, a pluggable and detachable cover structure, a pressurized delivery pipe structure, a discharge pipe, and a self-priming pump assembly. The plug-in hole is located at the upper middle position of the separator cylinder. The fixing mesh is screwed to the lower middle position of the inner wall of the separator cylinder. The guide plate is bolted to the lower part of the inner wall of the separator cylinder, and the guide plate is inclined with the left side higher than the right side. The design of the filling pipe, pressurizing pipe, support frame, air pressure pump assembly, and plug-in cover facilitates the use of the power generated by the air pressure pump assembly during operation to deliver gas into the filling pipe through the pressurizing pipe, increasing the internal pressure of the filling pipe. This increased pressure drives the material to move, thereby improving the oil separation effect.

[0004] The above solution has shortcomings in use. Since the inner diameter of the muffler box is much larger than the diameter of the filling pipe, when pressure is applied inside the filling pipe, the high-speed flowing oil enters the muffler box. Due to the sudden increase in the flow area, its flow velocity decreases rapidly. The reduced flow velocity causes the kinetic energy of the oil to be converted into static pressure energy. The oil forms eddies inside the muffler box and generates viscous resistance, causing some oil droplets to collide and coalesce with the wall under inertia. The coalesced oil droplets cannot quickly drip down and flow back. Moreover, the high-pressure gas will affect the gas emission. Therefore, we provide a carbon dioxide heat pump high-efficiency oil separation system. Utility Model Content

[0005] This invention provides a high-efficiency oil separation system for a carbon dioxide heat pump, which allows oil droplets to drip back quickly and extracts gas for rapid discharge.

[0006] The purpose and effectiveness of this utility model, a high-efficiency oil separation system for a carbon dioxide heat pump, are achieved by the following specific technical means: A high-efficiency oil separation system for a carbon dioxide heat pump includes a cylinder, and further includes:

[0007] An oil separator assembly is disposed inside a cylinder, including a conical cylinder disposed inside the cylinder and an oil separator structure disposed inside the conical cylinder;

[0008] The exhaust assembly, located at the top of the cylinder, is used to discharge the gas after the oil droplets have been separated.

[0009] Preferably, the oil separator structure includes a rotating shaft rotatably connected to the upper surface of the cylinder, the bottom end of the rotating shaft being rotatably connected to the inner bottom wall of the cylinder, and annularly arranged curved fan plates being fixedly connected to the outer surface of the rotating shaft.

[0010] Preferably, the oil separator structure further includes a motor mounted on the upper surface of the cylinder, the output end of the motor is fixedly connected to a first gear, the outside of the first gear is meshed with a second gear, and the bottom surface of the second gear is connected to the top end of the rotating shaft.

[0011] Preferably, a baffle is provided inside the conical cylinder, and the top of the baffle is connected to the inner top wall of the cylinder.

[0012] Preferably, the exhaust assembly includes an exhaust pipe connected to the top of the cylinder body, an installation cylinder rotatably connected to the top of the exhaust pipe, a gear ring that meshes with the second gear fixedly connected to the outside of the installation cylinder, and a fan blade installed inside the installation cylinder.

[0013] Preferably, a filter screen is installed inside the exhaust pipe, and the filter screen is located below the fan blades.

[0014] Preferably, a shield is detachably installed at the top of the mounting cylinder.

[0015] Preferably, an annular frame is fixedly connected to the outer surface of the mounting cylinder, and an L-shaped plate arranged in a ring is slidably connected to the inner wall of the annular frame, with the bottom end of each L-shaped plate connected to the upper surface of the cylinder.

[0016] Preferably, the top of the outer surface of the cylinder is connected to an air inlet pipe, and one end of the air inlet pipe extends into the interior of the top of the conical cylinder.

[0017] Preferably, the bottom end of the outer surface of the cylinder is connected to an oil guide pipe, and one end of the oil guide pipe extends into the bottom end of the conical cylinder.

[0018] Beneficial effects:

[0019] 1. By combining the oil separation component and the exhaust component, the mixed gas entering the conical cylinder can be agitated to generate centrifugal acceleration. Under the action of centrifugal force, the oil droplets in the mixed gas are thrown towards the conical cylinder and fall rapidly into the oil guide pipe along the inclined arc of the inner wall of the conical cylinder. At the same time, it can drive the mounting cylinder and fan blades to rotate, which can suck up the inside of the conical cylinder and allow the mixed gas after oil droplet separation to be quickly discharged from the inside of the conical cylinder.

[0020] 2. The filter screen can further filter the discharged mixed gas, reducing the loss of lubricating oil in the mixed gas. The baffle can guide the injected mixed gas, allowing it to flow into the vortex generated by the rotating curved fan plate, further ensuring the separation effect of oil droplets. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0022] Figure 2 This is a three-dimensional structural schematic diagram of the cylindrical body of this utility model, shown in the front section.

[0023] Figure 3 This is a three-dimensional structural diagram of the oil separation component of this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the curved fan plate of this utility model.

[0025] Figure 5 This is a three-dimensional structural diagram of the exhaust assembly of this utility model.

[0026] Figure 6 This is a three-dimensional structural schematic diagram of the orthographic section of the mounting cylinder of this utility model.

[0027] Figure 1-6 In the diagram, the correspondence between component names and drawing numbers is as follows:

[0028] 1. Cylinder body; 2. Oil separator assembly; 201. Conical cylinder; 202. Rotating shaft; 203. Curved fan blade; 204. Motor; 205. First gear; 206. Second gear; 207. Baffle; 3. Exhaust assembly; 301. Exhaust pipe; 302. Mounting cylinder; 303. Gear ring; 304. Fan blade; 305. Filter screen; 306. Shield; 307. Annular frame; 308. L-shaped plate; 4. Inlet pipe; 5. Oil guide pipe. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] First Embodiment

[0031] As attached Figure 1 To be continued Figure 4As shown: A high-efficiency oil separation system for a carbon dioxide heat pump includes a cylinder 1 and an oil separation component 2 disposed inside the cylinder 1. The component includes a conical cylinder 201 disposed inside the cylinder 1. An air inlet pipe 4 is connected to the top of the outer surface of the cylinder 1, and one end of the air inlet pipe 4 extends into the top of the conical cylinder 201. Mixed gas can be injected into the conical cylinder 201 through the air inlet pipe 4. An oil guide pipe 5 is connected to the bottom of the outer surface of the cylinder 1, and one end of the oil guide pipe 5 extends into the bottom of the conical cylinder 201. Oil droplets accumulated inside the conical cylinder 201 can be discharged through the oil guide pipe 5.

[0032] An oil separator structure is installed inside the conical cylinder 201. The oil separator structure includes a rotating shaft 202 rotatably connected to the upper surface of the cylinder 1. The bottom end of the rotating shaft 202 is rotatably connected to the inner bottom wall of the cylinder 1. A ring of curved fan-shaped plates 203 are fixedly connected to the outer surface of the rotating shaft 202. The oil separator structure also includes a motor 204 installed on the upper surface of the cylinder 1. A first gear 205 is fixedly connected to the output end of the motor 204. A second gear 206 meshes with the outer surface of the first gear 205. The bottom surface is connected to the top of the rotating shaft 202. When the motor 204 is started, the motor 204 will drive the first gear 205 to rotate. At the same time, the second gear 206 meshing with it will drive the rotating shaft 202 to rotate. The curved fan plate 203 will rotate at a high speed inside the conical cylinder 201, which can generate centrifugal acceleration on the injected mixed gas. The oil droplets in the mixed gas are thrown towards the cylinder wall of the conical cylinder 201 under the action of centrifugal force, and will fall rapidly into the oil guide pipe 5 along the inclined arc of the inner wall of the conical cylinder 201.

[0033] The conical cylinder 201 is equipped with a baffle 207. The top of the baffle 207 is connected to the inner top wall of the cylinder 1. The baffle 207 can guide the injected mixed gas, so that the mixed gas flows into the vortex generated when the curved fan plate 203 rotates, further ensuring the separation effect of oil droplets.

[0034] Second Embodiment

[0035] As attached Figure 1 Appendix Figure 2 Appendix Figure 5 With appendix Figure 6As shown: Exhaust assembly 3, located at the top of cylinder 1, is used to discharge the gas after oil droplet separation. Exhaust assembly 3 includes an exhaust pipe 301 connected to the top of cylinder 1. An installation cylinder 302 is rotatably connected to the top of exhaust pipe 301. A gear ring 303 that meshes with the second gear 206 is fixedly connected to the outside of installation cylinder 302. A fan blade 304 is installed inside installation cylinder 302. When the second gear 206 rotates, it will drive the gear ring 303 to rotate. Installation cylinder 302 and fan blade 304 will rotate synchronously. When fan blade 304 rotates, it will apply a certain suction force to the inside of cone cylinder 201. The mixed gas after oil droplet separation will flow upward under the influence of pressure, which can quickly discharge the mixed gas after oil droplet separation from the inside of cone cylinder 201. A filter screen 305 is installed inside exhaust pipe 301. The filter screen 305 is located below fan blade 304. When the mixed gas is discharged, it will pass through the filter screen 305. The filter screen 305 will filter the mixed gas again, further improving its oil droplet separation effect.

[0036] A shield 306 is detachably installed at the top of the mounting cylinder 302. The shield 306 can block impurities to prevent them from entering the conical cylinder 201. An annular frame 307 is fixedly connected to the outer surface of the mounting cylinder 302. Annularly arranged L-shaped plates 308 are slidably connected to the inner wall of the annular frame 307. The bottom end of each L-shaped plate 308 is connected to the upper surface of the cylinder 1. The cooperation between the annular frame 307 and the L-shaped plates 308 can stabilize the mounting cylinder 302 and further improve its stability during rotation.

[0037] Working principle: During use, the mixed gas is injected into the conical cylinder 201 through the air inlet pipe 4. Then, the motor 204 is started, which drives the first gear 205 to rotate. At the same time, the second gear 206 meshing with it drives the rotating shaft 202 to rotate. The curved fan blade 203 will rotate at a high speed inside the conical cylinder 201, which can generate centrifugal acceleration on the injected mixed gas. The oil droplets in the mixed gas are thrown towards the wall of the conical cylinder 201 under the action of centrifugal force, and will fall quickly into the oil guide pipe 5 along the inclined arc of the inner wall of the conical cylinder 201. When the second gear 206 rotates, it will drive the gear ring 303 to rotate. The mounting cylinder 302 and the fan blade 304 will rotate synchronously. When the fan blade 304 rotates, it will apply a certain suction force to the inside of the conical cylinder 201. The mixed gas after the oil droplets are separated will flow upward under the influence of pressure, which can allow the mixed gas after the oil droplets are separated to be quickly discharged from the inside of the conical cylinder 201.

Claims

1. A high-efficiency oil separation system for a carbon dioxide heat pump, comprising a cylinder (1), characterized in that, Also includes: The oil separator assembly (2) is disposed inside the cylinder (1) and includes a conical cylinder (201) disposed inside the cylinder (1) and an oil separator structure disposed inside the conical cylinder (201); The exhaust assembly (3) is located at the top of the cylinder (1) and is used to exhaust the gas after the oil droplets are separated.

2. The high-efficiency oil separation system of the carbon dioxide heat pump according to claim 1, characterized in that: The oil separator structure includes a rotating shaft (202) rotatably connected to the upper surface of the cylinder (1). The bottom end of the rotating shaft (202) is rotatably connected to the inner bottom wall of the cylinder (1). A ring of curved fan plates (203) are fixedly connected to the outer surface of the rotating shaft (202).

3. The high-efficiency oil separation system of the carbon dioxide heat pump according to claim 1, characterized in that: The oil separator structure also includes a motor (204) installed on the upper surface of the cylinder (1). The output end of the motor (204) is fixedly connected to a first gear (205). The first gear (205) is externally meshed with a second gear (206). The bottom surface of the second gear (206) is connected to the top end of the rotating shaft (202).

4. The high-efficiency oil separation system of the carbon dioxide heat pump according to claim 1, characterized in that: The conical cylinder (201) is provided with a baffle (207) inside, and the top of the baffle (207) is connected to the inner top wall of the cylinder (1).

5. The high-efficiency oil separation system of the carbon dioxide heat pump according to claim 1, characterized in that: The exhaust assembly (3) includes an exhaust pipe (301) connected to the top of the cylinder (1), and an installation cylinder (302) is rotatably connected to the top of the exhaust pipe (301). A gear ring (303) that meshes with the second gear (206) is fixedly connected to the outside of the installation cylinder (302), and a fan blade (304) is installed inside the installation cylinder (302).

6. The high-efficiency oil separation system of the carbon dioxide heat pump according to claim 5, characterized in that: The exhaust pipe (301) is equipped with a filter screen (305) located below the fan blades (304).

7. The high-efficiency oil separation system of the carbon dioxide heat pump according to claim 5, characterized in that: A shield (306) is detachably installed on the top of the mounting cylinder (302).

8. The high-efficiency oil separation system of the carbon dioxide heat pump according to claim 5, characterized in that: An annular frame (307) is fixedly connected to the outer surface of the mounting cylinder (302), and annularly arranged L-shaped plates (308) are slidably connected to the inner wall of the annular frame (307). The bottom end of each L-shaped plate (308) is connected to the upper surface of the cylinder (1).

9. The high-efficiency oil separation system of the carbon dioxide heat pump according to claim 1, characterized in that: The top of the outer surface of the cylinder (1) is connected to an air inlet pipe (4), and one end of the air inlet pipe (4) extends into the top of the conical cylinder (201).

10. The high-efficiency oil separation system of the carbon dioxide heat pump according to claim 1, characterized in that: The bottom end of the outer surface of the cylinder (1) is connected to an oil guide pipe (5), and one end of the oil guide pipe (5) extends into the bottom end of the conical cylinder (201).

Images