Carbon dioxide membrane module with hydrocarbon gas alarm filtration
Patent Information
- Application Number
- CN202522345605.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-05
AI Technical Summary
[0003]由于油田伴生气中含有甲烷和大量的 C3-C6 烃,经过脱水脱重后仍然有一定量的 C5-C6,微量的 C5-C6 以及大量的 C3-C4 极易导致二氧化碳分离膜溶胀,从而会使普通 CO2分离膜失去原有的分离选择性能,这也被行业内称之为“膜中毒”,进而影响膜组件的使用效率和寿命
[0011]本实用新型的一种带油气报警过滤的二氧化碳膜组件,在油气监测构件出厂时在其出口侧通过螺栓预先固定上连接法兰,然后,油气过滤器本体的输入口外侧直接在出厂时固定安装连接座,然后,油气监测构件在安装时,将连接管上的定位块与安装台配合并竖向滑动推动安装,然后,插装上限位部件,最后,滑动移动锁紧丝圈,移动至合适位置时旋转锁紧丝圈将其固定在螺纹台上,此时,定位块通过锁紧丝圈实现竖向限位,通过安装台实现水平限位,从而使得连接管与连接座稳定连通,且本申请结构在油气监测构件安装或拆卸时直接使得单个锁紧丝圈与螺纹台脱离,然后便可直接将设备向上滑动取出,极大的减少了螺栓设置数量,安装和拆卸更方便,进而能够实现油气监测构件和油气过滤器本体快速连接安装和拆卸。
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Figure CN224793061U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon dioxide separation membrane technology, and in particular to a carbon dioxide membrane module with oil and gas alarm filtration. Background Technology
[0002] Natural gas is primarily composed of methane. However, unconventional natural gas, such as associated gas from oil fields, contains not only methane but also ethane, propane, butane, pentane, and even higher-carbon light hydrocarbons. Furthermore, with the development of carbon dioxide geological sequestration and carbon dioxide enhanced oil recovery in my country, the CO2 content in natural gas is gradually increasing. Separating and removing CO2 from associated gas from oil fields and reinjecting it into the oil field can not only increase oil recovery but also achieve secondary geological sequestration of CO2, which is considered a necessary auxiliary decarbonization method for current carbon emission reduction. Membrane separation is a relatively economical method for separating and removing CO2 from associated gas. CO2 separation membrane modules are the core tool for associated gas separation and decarbonization; they are selectively permeable membranes that preferentially allow CO2 permeation, achieving the separation of mixed gases and are widely used in decarbonization processes.
[0003] Because associated gas in oil fields contains methane and a large amount of C3-C6 hydrocarbons, even after dehydration and deweighting, there is still a certain amount of C5-C6 hydrocarbons. The trace amounts of C5-C6 hydrocarbons and the large amounts of C3-C4 hydrocarbons can easily cause the carbon dioxide separation membrane to swell, which will cause the ordinary CO2 separation membrane to lose its original separation selectivity. This is also known in the industry as "membrane poisoning", which in turn affects the efficiency and lifespan of the membrane module.
[0004] In existing processing devices, oil and gas monitors and oil and gas filters are mostly installed by connecting them with flanges. Traditional flanges are connected with four bolts, but in practice, the number of bolts is increased for stability, making installation and subsequent maintenance and disassembly very inconvenient. Summary of the Invention
[0005] The purpose of this invention is to provide a carbon dioxide membrane module with oil and gas alarm filtration, which enables quick connection, installation and disassembly of the oil and gas monitoring component and the oil and gas filter body.
[0006] To achieve the above objectives, this utility model provides a carbon dioxide membrane module with oil and gas alarm filtration, including an oil and gas filter body, an oil and gas monitoring component connected and installed on the input side of the oil and gas filter body via a quick-installation component, and a working membrane component installed on the output side. The quick-installation component includes a connecting seat, a threaded platform, a mounting platform, a connecting pipe, a connecting flange, a positioning block, a locking screw, and a limiting component. The connecting seat is detachably connected to the oil and gas filter body and is located outside the inlet of the oil and gas filter body. The threaded platform is integrally formed with the connecting seat, and the mounting platform is integrally formed with the connecting seat and located close to the threaded platform. The connecting pipe is integrally formed with the positioning block. A sealing element is provided on the surface of the positioning block that contacts the mounting platform. The connecting flange is welded to the side of the connecting pipe away from the positioning block. The locking screw is fitted onto the outside of the connecting pipe before the connecting flange is welded and is threadedly connected to the threaded platform and slidably connected to the positioning block. The limiting component is located on the side of the mounting platform close to the positioning block.
[0007] The working membrane component is provided with a gas interception outlet and a carbon dioxide enrichment port.
[0008] The limiting component includes a limiting rod and an arc-shaped block. The limiting rod and the arc-shaped block are integrally formed and pass through the mounting platform and the positioning block respectively. The limiting is achieved by the arc-shaped block cooperating with the mounting platform.
[0009] The connection structure between the oil and gas monitoring component and the external gas pipeline can also be quickly connected and disassembled through the quick-installation component.
[0010] The oil and gas monitoring component consists of an oil and gas detector body and an oil and gas alarm, with the oil and gas alarm located on the upper side of the oil and gas detector.
[0011] This utility model discloses a carbon dioxide membrane module with oil and gas alarm filtration. When the oil and gas monitoring component leaves the factory, a connecting flange is pre-fixed to its outlet side using bolts. Then, a connecting seat is directly fixed to the outside of the inlet of the oil and gas filter body at the factory. During installation, the positioning block on the connecting pipe mates with the mounting platform and is vertically slid and pushed into place. Next, an upper limit component is inserted. Finally, the locking screw is slid and moved to the appropriate position, and then rotated to fix it to the threaded platform. At this point, the positioning block achieves vertical limitation through the locking screw and horizontal limitation through the mounting platform, thus ensuring stable connection between the connecting pipe and the connecting seat. Furthermore, this structure allows for direct disengagement of a single locking screw from the threaded platform during installation or disassembly of the oil and gas monitoring component, enabling the device to be slid upwards and removed directly. This significantly reduces the number of bolts required, making installation and disassembly more convenient, and enabling rapid connection, installation, and disassembly of the oil and gas monitoring component and the oil and gas filter body. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0013] Figure 1 This is a schematic diagram of the overall structure of the carbon dioxide membrane module with oil and gas alarm and filter of this utility model.
[0014] Figure 2 This is a cross-sectional view of the connector of this utility model.
[0015] Figure 3 This is a schematic diagram of the mounting platform of this utility model.
[0016] Figure 4 This is a schematic diagram of the positioning block of this utility model.
[0017] In the diagram: 101-Oil and gas filter body, 102-Working membrane component, 103-Connecting seat, 104-Threaded platform, 105-Mounting platform, 106-Connecting pipe, 107-Connecting flange, 108-Positioning block, 109-Locking thread ring, 110-Intercepted gas outlet, 111-Carbon dioxide enrichment port, 112-Limit rod, 113-Arc block, 114-Oil and gas detector body, 115-Oil and gas alarm, 116-Seal. Detailed Implementation
[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0019] like Figures 1 to 4 As shown, where Figure 1 This is a schematic diagram of the overall structure of a carbon dioxide membrane module with oil and gas alarm filtration. Figure 2 This is a sectional view of the connector. Figure 3 This is a structural diagram of the mounting platform. Figure 4 This is a structural schematic diagram of the positioning block. This utility model provides a carbon dioxide membrane assembly with oil and gas alarm filtration: it includes an oil and gas filter body 101, an oil and gas monitoring component, a working membrane component 102, and a quick-installation component. The quick-installation component includes a connecting seat 103, a threaded platform 104, a mounting platform 105, a connecting pipe 106, a connecting flange 107, a positioning block 108, a locking screw ring 109, and a limiting component. The limiting component includes a limiting rod 112 and an arc-shaped block 113. The aforementioned solution enables quick connection, installation, and disassembly of the oil and gas monitoring component and the oil and gas filter body. It is understood that the aforementioned solution facilitates quick connection, installation, and disassembly of the oil and gas monitoring component and the oil and gas filter body.
[0020] In this embodiment, the oil and gas filter body 101 is used for oil and gas filtration, thereby reducing the working pressure of the working membrane component 102. In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve the improvement of software and methods.
[0021] The oil and gas filter body 101 has an oil and gas monitoring component installed on its input side via a quick-installation component, and a working membrane component 102 installed on its output side; the oil and gas monitoring component is used for oil and gas monitoring and alarm.
[0022] The connecting seat 103 is detachably connected to the oil and gas filter body 101 and is located outside the inlet of the oil and gas filter body 101. The threaded platform 104 is integrally formed with the connecting seat 103. The mounting platform 105 is integrally formed with the connecting seat 103 and is close to the threaded platform 104. The connecting pipe 106 is integrally formed with the positioning block 108. The surface of the positioning block 108 that is in contact with the mounting platform 105 is provided with a sealing element 116. The connecting flange 107 is welded to the side of the connecting pipe 106 away from the positioning block 108. The locking thread ring 109 is sleeved and installed on the outside of the connecting pipe 106 before the connecting flange 107 is welded, and is threadedly connected to the threaded platform 104 and slidably connected to the positioning block 108. The limiting component is located on the side of the mounting platform 105 close to the positioning block 108. The fixing flange of the connecting seat 103 can be fixed with bolts, and the threaded platform 104 and the mounting platform 105 are integrally provided. It has an internally continuous air supply channel. The mounting platform 105 has a mounting groove structure to facilitate the installation of the positioning block 108. The connecting pipe 106 is integrally provided on the positioning block 108. A mounting groove is provided at the contact point between the positioning block 108 and the inner end face of the mounting platform 105. The sealing element 116, an O-ring rubber sealing ring, is installed in the groove. The positioning block 108 and the sliding cavity of the mounting platform 105 are perfectly slidably fitted. The top of the positioning block 108 has an arc-shaped structure that slides in contact with the smooth inner wall of the locking thread ring 109. The connecting flange 107 can be fixed with bolts.
[0023] Secondly, the working membrane component 102 is provided with a gas trapping outlet 110 and a carbon dioxide enrichment outlet 111. The corresponding outlets are used for carbon dioxide gas discharge.
[0024] Then, the limiting rod 112 is integrally formed with the arc-shaped block 113, and passes through the mounting platform 105 and the positioning block 108 respectively. The limiting is achieved by the arc-shaped block 113 cooperating with the mounting platform 105. A through stepped opening is provided on the mounting platform 105, that is, a limiting stepped structure is provided on one side and a round hole structure is provided on the other side. The limiting rod 112 is integrally provided on the arc-shaped block 113. The limiting rod 112 can slide through the through hole on the mounting platform 105 and the through hole on the positioning block 108. The outer side of the arc-shaped block 113 is flush with the arc-shaped outer wall of the mounting platform 105, and simultaneously slides in contact with the smooth inner wall of the locking coil 109 to achieve the limiting. After the locking screw ring 109 disengages from the threaded platform 104, and is slidably pulled closer to the connecting flange 107, the arc block 113 and the limiting rod 112 can be directly removed by pushing with the top rod. This sliding installation and removal method does not affect the convenient disassembly of the structure. Depending on the actual situation, the arc block 113 and the limiting rod 112 may not be provided.
[0025] Furthermore, the connection structure between the oil and gas monitoring component and the external gas pipeline can also be quickly connected and disassembled through the quick-installation component. This structure facilitates the rapid connection and installation of the gas pipeline and the oil and gas monitoring component.
[0026] Finally, the oil and gas monitoring component consists of an oil and gas detector body 114 and an oil and gas alarm 115, with the alarm 115 positioned on the upper side of the detector body 114. The detector body 114 detects the gas content and composition of the transported oil and gas, then displays the data on a corresponding display screen on the alarm 115 and triggers an alarm via a buzzer. The oil and gas monitoring component can directly utilize existing hazardous gas detection and alarm technologies.
[0027] When using this utility model to achieve quick connection, installation, and disassembly of the oil and gas monitoring component and the oil and gas filter body, the connecting flange 107 is pre-fixed to the outlet side of the oil and gas monitoring component by bolts at the factory. Then, the connecting seat 103 is directly fixed to the outside of the inlet of the oil and gas filter body 101 at the factory. Then, during installation, the positioning block 108 on the connecting pipe 106 is engaged with the mounting platform 105 and vertically slid and pushed to install the oil and gas monitoring component. Then, the limiting component is inserted. Finally, the locking screw ring 109 is slidably moved, and when it is moved to a suitable position, the locking screw ring 109 is rotated to fix it in place. On the threaded platform 104, the positioning block 108 is vertically limited by the locking screw ring 109 and horizontally limited by the mounting platform 105, without any movement, ensuring the sealing effect of the sealing element 116, thereby making the connecting pipe 106 and the connecting seat 103 stably connected. Moreover, the structure of this application allows a single locking screw ring 109 to disengage from the threaded platform 104 directly when the oil and gas monitoring component is installed or disassembled, and then the device can be directly slid upwards and removed, greatly reducing the number of bolts required, making installation and disassembly more convenient, and thus enabling the rapid connection, installation and disassembly of the oil and gas monitoring component and the oil and gas filter body 101.
[0028] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A carbon dioxide membrane module with oil and gas alarm filtration, comprising an oil and gas filter body, characterized in that, The oil and gas filter body has an oil and gas monitoring component installed on the input side via a quick-installation component, and a working membrane component installed on the output side. The quick-installation component includes a connecting seat, a threaded platform, a mounting platform, a connecting pipe, a connecting flange, a positioning block, a locking screw, and a limiting component. The connecting seat is detachably connected to the oil and gas filter body and is located outside the inlet of the oil and gas filter body. The threaded platform is integrally formed with the connecting seat, and the mounting platform is integrally formed with the connecting seat and located close to the threaded platform. The connecting pipe is integrally formed with the positioning block. A sealing element is provided on the surface of the positioning block that contacts the mounting platform. The connecting flange is welded to the side of the connecting pipe away from the positioning block. The locking screw is fitted onto the outside of the connecting pipe before the connecting flange is welded and is threadedly connected to the threaded platform and slidably connected to the positioning block. The limiting component is located on the side of the mounting platform close to the positioning block.
2. The carbon dioxide membrane module with oil and gas alarm filtration as described in claim 1, characterized in that, The working membrane component is provided with a gas interception outlet and a carbon dioxide enrichment port.
3. The carbon dioxide membrane module with oil and gas alarm filtration as described in claim 1, characterized in that, The limiting component includes a limiting rod and an arc-shaped block. The limiting rod and the arc-shaped block are integrally formed and pass through the mounting platform and the positioning block respectively. The limiting is achieved by the arc-shaped block cooperating with the mounting platform.
4. The carbon dioxide membrane module with oil and gas alarm filtration as described in claim 1, characterized in that, The connection structure between the oil and gas monitoring component and the external gas pipeline can also be quickly connected and disassembled through the quick-installation component.
5. The carbon dioxide membrane module with oil and gas alarm filtration as described in claim 1, characterized in that, The oil and gas monitoring component consists of an oil and gas detector body and an oil and gas alarm, with the oil and gas alarm positioned on the upper side of the oil and gas detector.