An oil-gas separation component and an oil-gas separation system

Abstract

This invention provides an oil-gas separation assembly and system. The oil-gas separation assembly includes a separation device for oil-gas separation and a filter device for filtering the oil after oil-gas separation. The separation device has a first gas outlet at its upper part, and the filter device has a first oil outlet at its bottom. The separation device and the filter device are connected by a sleeve, with the separation device positioned above the filter device. This embodiment eliminates the need for a secondary oil return pipeline, resulting in fewer system parts, higher separation efficiency, and improved overall compressor efficiency.

Description

Technical Field

[0001] This disclosure relates to the field of oil and gas separation technology, and in particular to an oil and gas separation component and an oil and gas separation system. Background Technology

[0002] The function of an oil-gas separation system is to separate and remove oil droplets from compressed gas. Existing oil-gas separation systems typically use separate separation and filtration devices, which require the installation of valve blocks, making the process complex and time-consuming.

[0003] Moreover, existing oil-gas separation systems typically have a secondary oil return pipe installed in the oil-gas separation tank to draw out residual oil from the separation device in the oil-gas separation assembly, so as not to affect the oil-gas separation performance of the separation device. However, the presence of the secondary oil return pipe makes the installation and maintenance of the oil-gas separation assembly time-consuming and inconvenient. Summary of the Invention

[0004] The purpose of this disclosure is to provide an oil-gas separation component and an oil-gas separation system to solve the problems existing in the prior art. To solve the above-mentioned technical problems, the embodiments of this disclosure adopt the following technical solutions:

[0005] One aspect of this disclosure provides an oil-gas separation assembly, including...

[0006] Separation device, the separation device being used for oil-gas separation;

[0007] A filtration device used to filter oil after oil-gas separation;

[0008] The separation device is provided with a first gas outlet, and the filter device is provided with a first oil outlet. The separation device and the filter device are connected by a sleeve, and the separation device is positioned above the filter device.

[0009] In some embodiments, the separation device is an oil separator core.

[0010] In some embodiments, the filtration device is an oil filter.

[0011] In some embodiments, the filtering device, the sleeve, and the separating device are an integral structure.

[0012] In this embodiment, the oil-gas separation assembly connects the separation device and the filter device through a sleeve, eliminating the need for a separate connecting valve block or connecting pipe. The overall structure of the oil-gas separation assembly is simple and easy to install and maintain. Furthermore, the oil separated by the separation device drips directly into the filter device through the sleeve, improving the separation efficiency of the separation device.

[0013] Another aspect of this disclosure provides an oil-gas separation system, which includes an oil-gas separation tank and an oil-gas separation component as described in any of the above embodiments. The oil-gas separation tank is provided with a first gas inlet, a gas outlet, and an oil return outlet. The oil-gas separation component is disposed inside the oil-gas separation tank. The first oil outlet is connected to the oil return outlet, and the first gas outlet is connected to the gas outlet.

[0014] In some embodiments, the oil-gas separator is constructed as a first cylinder and at least one second cylinder that are interconnected, the first gas inlet is disposed on the first cylinder, the gas outlet and the oil return outlet are disposed on the second cylinder, and the oil-gas separation assembly is disposed in the second cylinder.

[0015] In some embodiments, a primary oil-gas separation separator is provided inside the oil-gas separator.

[0016] In some embodiments, the upper part of the second cylinder is connected to the upper part of the first cylinder or the upper part of the previous second cylinder, and the bottom of the second cylinder is connected to the bottom of the first cylinder or the bottom of the previous second cylinder.

[0017] In some embodiments, a second gas outlet is provided at the upper part of the first cylinder, and a second gas inlet is provided at the upper part of the second cylinder, with the second gas inlet and the second gas outlet connected by a first pipe.

[0018] In some embodiments, a second oil outlet is provided at the bottom of the first cylinder and an oil inlet is provided at the bottom of the second cylinder. The oil inlet is connected to the second oil outlet through a second pipe, so that the oil level in the first cylinder and the oil level in the second cylinder are kept consistent.

[0019] In some embodiments, the separation device is located above the oil level and the filtration device is located below the oil level.

[0020] The oil-gas separation system in this embodiment uses the aforementioned oil-gas separation components, which have a simple structure, are easy to install and maintain, and eliminate the need for a secondary oil return pipe. This results in fewer parts and higher separation efficiency, thereby improving the overall compressor efficiency. Furthermore, by removing the secondary oil return line, the number of parts is reduced (e.g., the secondary oil return pipe and connecting valve block are no longer required), and in cases where the oil-gas separation level and efficiency are low, recirculation of compressed gas through the secondary oil return line can be prevented. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the oil-gas separation component according to an embodiment of the present disclosure;

[0023] Figure 2 This is a schematic diagram of the structure of an oil-gas separation system according to an embodiment of the present disclosure.

[0024] Figure label:

[0025] 10 - First cylinder; 11 - Separation tank; 20 - Second cylinder; 21 - Separation device; 22 - Sleeve; 23 - Filter device; 31 - First gas outlet; 32 - First oil outlet; 33 - First gas inlet; 34 - Gas outlet; 35 - Oil return port; 36 - Second gas outlet; 37 - Second gas inlet; 38 - First pipeline; 39 - Second oil outlet; 40 - Oil inlet; 41 - Second pipeline. Detailed Implementation

[0026] Various embodiments and features of this disclosure are described herein with reference to the accompanying drawings.

[0027] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this disclosure will be apparent to those skilled in the art.

[0028] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present disclosure and, together with the general description of the disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.

[0029] These and other features of this disclosure will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0030] It should also be understood that although this disclosure has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this disclosure, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0031] The above and other aspects, features and advantages of this disclosure will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0032] Specific embodiments of this disclosure are described thereafter with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this disclosure, which may be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure this disclosure. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely to serve as the basis and representative basis for the claims to teach those skilled in the art to use this disclosure in a variety of substantially any suitable detailed structures.

[0033] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in still another embodiment,” all of which may refer to one or more of the same or different embodiments according to this disclosure.

[0034] The first embodiment of this disclosure provides an oil-gas separation component, such as... Figure 1 As shown, it adopts a three-section structure. Specifically, the oil-gas separation assembly includes a separation device 21 and a filter device 23 arranged vertically. The separation device 21 and the filter device 23 are connected by a sleeve 22, wherein the separation device 21 is positioned above the filter device 23. The separation device 21 is used to achieve oil-gas separation. For example, an oil-gas mixture can enter the separation device 21 from the side and undergo fine oil-gas separation within the separation device 21. The filter device 23 is used to filter the oil after the above oil-gas separation.

[0035] Furthermore, the separation device 21 is provided with a first gas outlet 31, which is used to discharge the gas after fine oil-gas separation. The filter device 23 is provided with a first oil outlet 32, which is used to discharge the cleaner oil that has fallen into the filter device 23 after fine oil-gas separation and has been filtered by the filter device 23. The first oil outlet 32 ​​can be located at the bottom of the filter device 23 or any other convenient location for the oil filtered in the filter device 23 to be discharged.

[0036] In this way, the compressed gas containing oil first undergoes fine oil-gas separation through the separation device 21 after entering the oil-gas separation assembly. The separated gas is discharged through the first gas outlet 31 to obtain purer gas. The separated oil enters the filter device 23 through the sleeve for filtration and is discharged through the first oil outlet 32 ​​to obtain cleaner oil.

[0037] The sleeve 22 serves as a channel between the separating device 21 and the filtering device 23, and its length can be determined according to actual needs. Furthermore, the outer contour dimensions of the separating device 21, the sleeve 22, and the filtering device 23 can be the same or different, as long as a seal is achieved at the connection between the separating device 21 and the sleeve 22, and between the filtering device 23 and the sleeve 22. This mutual sealing allows for the separation of dirty oil / clean oil and dirty air / clean air.

[0038] When installing the oil-gas separation assembly, the separation device 21 and the filter device 23 are connected together through the sleeve 22. Installation and separation can be achieved with simple operation, which will shorten the time required for manual disassembly using a wrench.

[0039] Furthermore, the separation device 21 can be any type of separation device, such as an oil separator core.

[0040] Furthermore, the filter device 23 can be any type of filter device, such as an oil filter.

[0041] As a preferred embodiment, the filter device 21, the sleeve 22, and the separator 23 can also be integrated into a single unit. This integrated structure makes installation and maintenance of the oil-gas separator assembly more convenient and faster in any oil-gas separation system. In this way, the oil-gas separator assembly can be considered a consumable item with a limited lifespan, allowing for complete replacement.

[0042] In this embodiment, the oil-gas separation assembly connects the separation device and the filter device through a sleeve, eliminating the need for a separate connecting valve block or connecting pipe. The overall structure of the oil-gas separation assembly is simple and easy to install and maintain. Furthermore, the oil separated by the separation device drips directly into the filter device through the sleeve, improving the separation efficiency of the separation device.

[0043] A second embodiment of this disclosure provides an oil-gas separation system, comprising an oil-gas separation tank and an oil-gas separation component as described in any of the first embodiments above. The oil-gas separation tank is used for primary oil-gas separation of an oil-gas mixture, and the oil-gas separation component is used for fine oil-gas separation of the oil-gas mixture after primary separation. The oil-gas separation component can be completely replaced within the oil-gas separation system.

[0044] Specifically, such as Figure 2As shown, the oil-gas separator is provided with a first gas inlet 33, a gas outlet 34, and an oil return port 35. The oil-gas separation assembly is disposed inside the oil-gas separator. Here, the first gas inlet 33 is used to inject an oil-gas mixture, for example, injected by an oil-injection compressor. The gas outlet 34 is connected to the first gas outlet 31 and is used to discharge the gas after primary oil-gas separation and fine oil-gas separation. The oil return port 35 is connected to the first oil outlet 32 ​​and is used to discharge the oil after primary oil-gas separation and fine oil-gas separation. In this way, the oil-gas separation system can achieve multiple separations of the oil-gas mixture to obtain pure gas and cleaner oil.

[0045] Furthermore, the oil-gas separator is constructed as a first cylinder 10 and at least one second cylinder 20 that are interconnected. A first gas inlet 33 is disposed on the first cylinder 10. The position of the first gas inlet 33 can be, for example, located on the upper part of the side of the first cylinder 10. A high-speed oil-gas mixture from, for example, an oil injection compressor enters the first cylinder 10 through the first gas inlet 33. The oil-gas mixture undergoes primary oil-gas separation in the first cylinder 10 and fine oil-gas separation in the second cylinder 20.

[0046] Specifically, the air outlet 34 and the oil return port 35 are disposed on the second cylinder 20, and the oil-gas separation assembly is disposed inside the second cylinder 20. The air outlet 34 is used to discharge the air discharged from the first gas outlet 31 after oil-gas separation by the separation device 21 to the outside. The oil return port 35 is connected to, for example, an external oil suction pipe, so as to be able to extract cleaner oil after being filtered by the filter device 23. The oil-gas mixture after primary oil-gas separation is further separated into cleaner compressed gas and cleaner oil in the second cylinder 20 by the oil-gas separation assembly.

[0047] Furthermore, the first cylinder 10 is connected to at least one second cylinder 20, that is, the upper part of the second cylinder 20 is connected to the upper part of the first cylinder 10 or the upper part of the preceding second cylinder 20, and the bottom of the second cylinder 20 is connected to the bottom of the first cylinder 10 or the bottom of the preceding second cylinder 20. In this way, the oil-gas mixture can achieve separation between oil droplets and air sequentially in the first cylinder 10 and the second cylinder 20, respectively. Here, the first cylinder 10 is used to perform primary oil-gas separation on the injected oil-gas mixture, and the second cylinder 20, through its oil-gas separation component, is used to perform at least one fine oil-gas separation on the gas stream that has undergone primary oil-gas separation.

[0048] When there are multiple second cylinders 20, the multiple second cylinders 20 are connected in sequence, so that the airflow after primary separation passes through multiple second cylinders 20 in sequence, thereby achieving continuous and multiple fine oil-gas separations through multiple oil-gas separation components, thereby obtaining cleaner air and cleaner oil, so as to achieve better separation effect.

[0049] Furthermore, a separation tank 11 is provided inside the first cylinder 10. The separation tank 11 can be installed at the upper part of the first cylinder 10, for example, by means of suspension. The high-speed oil-gas mixture entering from the first gas inlet 33 enters the separation tank 11 for primary oil-gas separation. Specifically, for example, the oil-gas mixture enters the separation tank 11 at high speed tangentially from the first gas inlet 33. Under the action of centrifugal force, it impacts the wall of the separation tank 11 and then undergoes cyclone separation around the separation tank 11, realizing the first separation between oil droplets and air, i.e., primary oil-gas separation. The airflow after primary oil-gas separation flows to the upper part of the first cylinder 10, and the separated oil drips to the bottom of the oil-gas separation tank.

[0050] Furthermore, a second gas outlet 36 is provided at the upper part of the first cylinder 10 (such as the top of the first cylinder 10), and a second gas inlet 37 is provided at the upper part of the second cylinder 20. The second gas inlet 37 and the second gas outlet 36 are connected by a first pipe 38. The gas flow after primary oil-gas separation enters the second cylinder 20 through the first pipe 38 for subsequent fine separation operations.

[0051] Specifically, after the primary oil-gas separation, the gas flow enters the second cylinder 20 and undergoes fine oil-gas separation by the separation device 21. The separated clean air can be finally discharged through the first gas outlet 31 and the gas outlet 34. The separated oil droplets fall through the sleeve 22 into the filter device 23 for filtration. The filtered oil droplets are discharged from the oil-gas separation system through the first oil outlet 32.

[0052] Furthermore, an initial oil level is set inside the oil-gas separator tank. Considering that the oil droplets (which can be understood as dirty oil) after primary oil-gas separation will fall to the bottom of the first cylinder 10 under gravity, a second oil outlet 39 is provided at the bottom of the first cylinder 10. To facilitate the collection of the fallen oil droplets, the bottom of the first cylinder 10 can be designed as an inclined structure, which can be a V-shaped or U-shaped structure. This allows the oil droplets to continuously flow to a lower position at the bottom of the first cylinder 10. In addition, the second oil outlet 39 can be located on the inclined structure, specifically at a lower position on the inclined structure, to facilitate the later discharge of oil located at the bottom of the first cylinder 10.

[0053] An oil inlet 40 is provided at the bottom of the second cylinder 20. The oil inlet 40 is connected to the second oil outlet 39 through a second pipe 41. Here, the oil at the bottom of the first cylinder 10 and the oil at the bottom of the second cylinder 20 can flow together, so that the oil levels in the first cylinder 10 and the second cylinder 20 are consistent. In this way, the oil in the first cylinder 10 that has undergone primary oil-gas separation mixes with the lubricating oil contained in the first cylinder 10 and flows into the second cylinder 20 through the second pipe 41, forming a certain oil level. The oil in the second cylinder 20 with a certain oil level can enter the filter device 23 from the side for filtration. The filtered oil is discharged through the first oil outlet 32.

[0054] Considering that the oil in the first cylinder 10 will flow into the second cylinder 20 and form a certain oil level in the second cylinder 20; furthermore, the separation device 21 is located above the oil level and the filter device 23 is located below the oil level. Specifically, considering that the oil droplets after fine oil-gas separation flow into the filter device 23 through the sleeve 22, the length of the sleeve 22 can be adjusted as needed so that the filter device 23 can be completely immersed below the oil level in the second cylinder 20, while the separation device 21 will not be in the oil, to prevent the separation device 21 from sucking in lubricating oil and thus affecting the separation efficiency of the separation device 21. At the same time, the oil plays a role in sealing and cleaning air and dirty air. Of course, the sleeve 22 can be reused, and different lengths of the sleeve 22 can be replaced according to, for example, the oil level. During installation, it is only necessary to connect the separation device 21 to one end of the sleeve 22 and the filter device 23 to the other end of the sleeve 22. The connection method is not limited here.

[0055] Preferably, the separation device 21 and the filter device 23 are interconnected through the sleeve 22 to prevent dirty air from leaking into clean air through the filter device 23. The filter device 23 must always be fully submerged in the oil level of the second cylinder 20. The oil at the bottom of the second cylinder 20 can also act as liquid in the siphon tube to prevent dirty air from mixing with clean air.

[0056] Furthermore, the function of the second pipe 41 here is to keep the oil levels of the first cylinder 10 and the second cylinder 20 consistent. The oil level needs to be maintained at a certain height, for example, between the upper and lower limits of the oil level. If the oil level is higher than the first preset threshold, i.e., the oil level is too high, the separator 21 will become saturated, which will cause the separator 21 to fail to operate and result in high oil buildup. If the oil level is lower than the second preset threshold, there will not be enough clean oil discharged and returned to the front compressor for lubrication, which will cause the entire compressor system to fail to operate normally. Moreover, dirty air may flow into the clean air side through the oil filter, resulting in oil residue in the clean air discharged from the outlet 34.

[0057] To prevent the oil level in the second cylinder 20 from becoming too high and saturating the separator 21, the oil that has undergone fine oil-gas separation can continuously flow back into the first cylinder 10 through the second pipe 41. Therefore, the oil inlet 40 is positioned vertically higher than the second oil outlet 39, ensuring that the oil at the bottom of the second cylinder 10 can flow back to the bottom of the first cylinder 10 through the second pipe 41. Here, by controlling the pressure drop across the separator 21 and the filter 23, oil can be prevented from being pushed into the clean air side above the second cylinder 20.

[0058] In the process of adopting the embodiments of this disclosure, for example, the oil-gas mixture gas flow injected by the oil injection compressor enters the first cylinder 10 through the first gas inlet 33. First, it undergoes primary oil-gas separation through the separation tank 11. The separated gas flow enters the second cylinder 20 through the first pipe 38. In the second cylinder 20, it undergoes fine oil-gas separation through the separation device 21. The separated gas is finally discharged through the first gas outlet 31 and the gas outlet 34, or enters the next second cylinder 20 connected in sequence for the next fine oil-gas separation. After fine oil-gas separation, the oil droplets pass through the sleeve 22 and enter the filter device 23 for filtration. The filtered oil droplets gather at the bottom of the second cylinder 20 and can be extracted as clean oil from the first oil outlet 32 ​​and the oil return port 35. After primary oil-gas separation, the oil that accumulates at the bottom of the first cylinder 10 enters the second cylinder 20 through the second pipe 39 and the oil level is continuously raised. The oil that accumulates at the bottom of the second cylinder 20 enters the filter device 23 for filtration. Finally, it is extracted through the first oil outlet 32 ​​and the oil return port 35, thereby obtaining cleaner oil.

[0059] The oil-gas separation system in this embodiment uses the aforementioned oil-gas separation components, which have a simple structure, are easy to install and maintain, and eliminate the need for a secondary oil return pipe. This results in fewer parts and higher separation efficiency, thereby improving the overall compressor efficiency. Furthermore, by removing the secondary oil return line, the number of parts is reduced (e.g., the secondary oil return pipe and connecting valve block are no longer required), and in cases where the oil-gas separation level and efficiency are low, recirculation of compressed gas through the secondary oil return line can be prevented.

[0060] Furthermore, while the operations are described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in a sequential order. In certain environments, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of this disclosure. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0061] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

[0062] The foregoing has provided a detailed description of several embodiments of this disclosure. However, this disclosure is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications based on the concept of this disclosure, and all such variations and modifications should fall within the scope of protection claimed by this disclosure.

Claims

1. An oil and gas separation assembly, characterized by, include A separation device for oil-gas separation, the separation device having a first gas outlet at the top, the separation device being configured to allow an oil-gas mixture to enter the separation device via the side of the separation device, the separation device being an oil separator core; A filter device for filtering oil after oil-gas separation, wherein the bottom of the filter device is provided with a first oil outlet. as well as A sleeve is provided, with its top end connected to the bottom end of the separating device and its bottom end connected to the top end of the filtering device. The outer contour dimensions of the separating device, the sleeve, and the filtering device are the same, forming a channel between the separating device and the filtering device. This allows the oil separated by the separating device to drip directly into the filtering device through the sleeve. The separating device, the sleeve, and the filtering device form a three-section structure, and the connections between the separating device and the sleeve, as well as between the filtering device and the sleeve, are sealed.

2. The oil and gas separation assembly of claim 1, wherein, The filtration device is an oil filter.

3. The oil and gas separation assembly of claim 1, wherein, The filtration device, the sleeve, and the separation device are an integrated structure.

4. An oil-gas separation system, characterized in that, The invention includes an oil-gas separator and an oil-gas separation component according to any one of claims 1-3. The oil-gas separator is provided with a first gas inlet, a gas outlet and an oil return port. The oil-gas separation component is disposed inside the oil-gas separator. The first oil outlet is connected to the oil return port and the first gas outlet is connected to the gas outlet.

5. The oil-gas separation system according to claim 4, characterized in that, The oil-gas separator is constructed as a first cylinder and at least one second cylinder that are interconnected. The first gas inlet is located on the first cylinder, the gas outlet and the oil return outlet are located on the second cylinder, and the oil-gas separation assembly is located inside the second cylinder.

6. The oil-gas separation system according to claim 4, characterized in that, A primary oil-gas separation separator is provided inside the oil-gas separator.

7. The oil-gas separation system according to claim 5, characterized in that, The upper part of the second cylinder is connected to the upper part of the first cylinder or the upper part of the previous second cylinder, and the bottom of the second cylinder is connected to the bottom of the first cylinder or the bottom of the previous second cylinder.

8. The oil-gas separation system according to claim 7, characterized in that, A second gas outlet is provided at the upper part of the first cylinder, and a second gas inlet is provided at the upper part of the second cylinder. The second gas inlet and the second gas outlet are connected by a first pipe.

9. The oil-gas separation system according to claim 7, characterized in that, A second oil outlet is provided at the bottom of the first cylinder, and an oil inlet is provided at the bottom of the second cylinder. The oil inlet is connected to the second oil outlet through a second pipe, so that the oil level in the first cylinder and the oil level in the second cylinder are kept consistent.

10. The oil-gas separation system according to claim 9, characterized in that, The separation device is located above the oil level and the filtration device is located below the oil level.

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