Coalescer with easy access for maintenance

CN224723858UActive Publication Date: 2026-09-08WUXI ZHANGJING PRESSURE VESSEL MFG CO LTD
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Patent Information

Application Number
CN202522015381.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-19
Publication Date
2026-09-08
Estimated Expiration
2035-09-19

AI Technical Summary

Technical Problem

(一)检修困难:由于滤板与筒体焊接固定以及滤芯组件与滤板的焊接固定,在安装滤芯后,操作人员难以进入筒体内部对滤芯的密封性、完整性及聚结效果进行检查,若滤芯出现破损或密封失效,无法及时发现和更换,影响设备运行效率

Benefits of technology

滤板表面的定位套与滤芯组件的支杆采用螺纹配合结构,为滤芯组件提供了稳定的轴向定位的同时还保证了密封性,确保滤芯组件在工作过程中始终保持稳定的运行状态;此外该设计还提供空间便于操作人员对筒体内部安装的滤芯组件进行检修更换,无需整体拆卸聚结器,减少维护成本,提升了聚结器整体的使用寿命。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of coalescer convenient for overhauling, the coalescer includes filter plate being arranged in through cylinder, flange ring is arranged along the cylinder inner wall, the filter plate is arranged in the flange ring, and the filter plate and the flange ring form partial abutment. On the filter plate surface, positioning sleeve is also uniformly arranged, and the coalescer further includes filter core assembly, and the filter core assembly is matched in the positioning sleeve. The positioning sleeve on the filter plate surface and the supporting rod of filter core assembly adopt threaded cooperation structure, which provides stable axial positioning for filter core assembly while also ensuring sealing, ensuring that filter core assembly always maintains stable operating condition during working process. In addition, this design also provides space for operators to overhaul and replace filter core assembly installed inside the cylinder, without the need to disassemble the coalescer as a whole, reducing maintenance costs and improving the overall service life of the coalescer.
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Description

Technical Field

[0001] This utility model relates to the field of coalescing technology, and in particular to a coalescing device that is easy to maintain. Background Technology

[0002] In the petroleum, chemical, and natural gas industries, coalescers are crucial devices for separating tiny droplets or solid particles from liquids or gases. Traditional coalescers typically consist of a cylindrical body and internal filter plates, with filter elements mounted on the plates for filtration and coalescence of the medium. However, most existing coalescers employ a design where the filter plates and cylinder are welded together as a single unit. This design has the following drawbacks: (a) Difficulty in maintenance: Due to the welding and fixing of the filter plate to the cylinder and the filter element assembly to the filter plate, after the filter element is installed, it is difficult for operators to enter the cylinder to check the sealing, integrity and coalescence effect of the filter element. If the filter element is damaged or the seal fails, it cannot be detected and replaced in time, which affects the operating efficiency of the equipment.

[0003] (ii) High maintenance costs: Once the filter element needs to be replaced or maintained, the entire coalescer usually needs to be disassembled, or even the welded parts need to be cut. This is not only time-consuming and labor-intensive, but may also damage the equipment and increase maintenance costs. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a coalescer that is easy to maintain, so as to solve one or more problems in the prior art.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A coalescer that is easy to maintain includes a filter plate disposed within a cylindrical body, a flange ring disposed along the inner wall of the cylindrical body, the filter plate being disposed on the flange ring, and the filter plate and the flange ring forming abutment. Positioning sleeves are also uniformly disposed on the surface of the filter plate. The coalescer also includes a filter element assembly that cooperates with the positioning sleeves.

[0006] Furthermore, the coalescer also includes a first end cap connected to the top of the cylinder and a second end cap connected to the bottom of the cylinder, and the filter plate, the cylinder, the first end cap, and the second end cap form a first cavity and a second cavity.

[0007] Furthermore, the filter element assembly includes a support rod, a filter element, and a bolt. The support rod is threaded into the positioning sleeve. A baffle is also provided on the surface of the support rod. The filter element is sleeved on the support rod and one end abuts against the baffle. The bolt is engaged with the support rod and abuts against the other end of the filter element.

[0008] Furthermore, an outlet is provided on the surface of the cylinder that leads to the first cavity, and a guide plate is also provided on the inner wall of the cylinder near the outlet in the first cavity; the surface of the cylinder is also provided with a first level gauge transmitter port and a first liquid outlet that lead to the first cavity.

[0009] Furthermore, an inlet leading to the second cavity is provided on the surface of the cylinder, and a blade separator is also provided near the inlet within the second cavity; a second level gauge transmitter port and an automatic drain port are also provided on the surface of the cylinder, leading to the second cavity.

[0010] Furthermore, pressure transmitter ports that open into the first cavity and the second cavity are respectively provided on the surface of the cylinder.

[0011] Furthermore, a lifting lug, a pressure gauge port, and a thermometer port are also provided on the surface of the first end cap.

[0012] Furthermore, a second liquid outlet is also provided on the second end cap.

[0013] Furthermore, the coalescer also includes a support leg, one end of which is connected to the cylinder.

[0014] Furthermore, the coalescer also includes a grounding plate connected to the leg.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows: The positioning sleeve on the filter plate surface and the support rod of the filter element assembly adopt a threaded engagement structure, which provides stable axial positioning for the filter element assembly while ensuring sealing, ensuring that the filter element assembly maintains a stable operating state during operation. In addition, this design provides space for operators to easily inspect and replace the filter element assembly installed inside the cylinder without disassembling the entire coalescer, reducing maintenance costs and extending the overall service life of the coalescer. Attached Figure Description

[0016] Figure 1 A cross-sectional view of a coalescer according to an embodiment of the present invention is shown.

[0017] Figure 2 A top view of a coalescer according to an embodiment of the present invention is shown.

[0018] Figure 3 A schematic diagram of the structure of a filter element assembly for a coalescer that is easy to maintain, according to an embodiment of the present invention, is shown.

[0019] The attached diagram is labeled as follows: 1. Cylinder; 101. Outlet; 102. First level gauge transmitter port; 103. First liquid outlet; 104. Inlet; 105. Second level gauge transmitter port; 106. Automatic drain port; 107. Pressure transmitter port; 2. Filter plate; 3. Flange ring; 4. Positioning sleeve; 5. First end cap; 501. Lifting lug; 502. Pressure gauge port; 503. Thermometer port; 6. Second end cap; 601. Second liquid outlet; 7. First cavity; 8. Second cavity; 9. Filter element assembly; 901. Support rod; 9011. Baffle; 902. Filter element; 903. Bolt; 10. Guide plate; 11. Leaf separator; 12. Support leg; 13. Grounding plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a coalescer that is easy to maintain, in conjunction with the accompanying drawings and specific embodiments, provides a further explanation. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Please see Figures 1 to 3 The coalescer in this embodiment, which is easy to maintain, includes a filter plate 2 disposed within the cylindrical body 1. The filter plate 2 supports the pressure-bearing filter element assembly 9 and prevents media short-circuiting, ensuring that all media must pass through the filter element assembly 9 to guarantee filtration efficiency and improve coalescence separation effect. A flange ring 3 is arranged annularly along the inner wall of the cylindrical body 1. The filter plate 2 is disposed on the flange ring 3, and the filter plate 2 and the flange ring 3 form a partial abutment, avoiding the traditional welding that integrates the filter plate 2 with the cylindrical body 1. This effectively avoids the deformation problem of the cylindrical body 1 caused by stress concentration due to traditional integrated welding, improves the fatigue resistance of the overall structure, and effectively prevents media leakage, ensuring long-term stable operation of the coalescer.

[0022] Furthermore, positioning sleeves 4 are uniformly arranged on the surface of the filter plate 2. The coalescing device includes the filter element assembly 9, which includes a support rod 901, a filter element 902, and a bolt 903. The support rod 901 is threadedly engaged with the positioning sleeve 4. A baffle 9011 is also provided on the surface of the support rod 901. The filter element 902 is sleeved on the support rod 901 and one end abuts against the baffle 9011. The bolt 903 is engaged with the support rod 901 and abuts against the other end of the filter element 902. Preferably, the positioning sleeve 4 has an internal thread, and the support rod 901 has an external thread. Through the threaded engagement of the positioning sleeve 4 and the support rod 901, the positioning and installation of the filter element assembly 9 on the filter plate 2 can be quickly achieved, ensuring that the filter element 902 will not shift or shake during operation, while also providing excellent sealing performance. The baffle 9011 provides axial restraint for the filter element 902, preventing it from moving axially along the support rod 901 under media impact. The bolt 903 secures the filter element 902 from the other end. Tightening the bolt 903 firmly clamps the filter element 902 between the baffle 9011 and the bolt 903, further enhancing the installation stability of the filter element assembly 9. This design makes replacing the filter element 902 more convenient. When replacement is needed, simply unscrew the bolt 903 to remove the old filter element 902 from the support rod 901, replace it with a new one, and then retighten the bolt 903. This eliminates the need for complex disassembly of the entire filter element assembly 9 and the entire coalescer, significantly reducing maintenance time and costs and improving the coalescer's maintenance efficiency.

[0023] During the operation of the filter element assembly 9, the support rod 901 should have a through-hole. Within the area where the filter element 902 is installed, the support rod 901 should also have through holes evenly distributed through the through-hole. The bolt 903 is then sealed at one end of the through-hole of the support rod 901, thereby ensuring that when the medium passes through the through-hole of the support rod 901, it flows out from the through-hole and is filtered by the filter element 902. Impurities in the medium are trapped by the filter element 902, and the purified medium passes through the outer wall of the filter element 902 into the subsequent processing space of the coalescer, completing the entire filtration process.

[0024] Furthermore, the coalescer also includes a first end cap 5 connected to the top of the cylinder 1 and a second end cap 6 connected to the bottom of the cylinder 1. The filter plate 2, the cylinder 1, the first end cap 5, and the second end cap 6 form a first cavity 7 and a second cavity 8. The operator can enter the first cavity 7 to connect the filter plate 2 and the flange ring 3, and also observe the sealing effect of the filter element 902. The filter element assembly 9 is disposed in the first cavity 7. An outlet 101 is provided on the surface of the cylinder 1, leading to the first cavity 7. A guide plate 10 is also provided on the inner wall of the cylinder 1 near the outlet 101 in the first cavity 7. After the medium purified by the filter element 902 enters the first cavity 7, it will flow towards the outlet 101 along the setting angle of the guide plate 10. The setting of the guide plate 10 allows for further gas-liquid separation of the medium in the first cavity 7, so as to achieve the best guiding and separation effect.

[0025] Furthermore, the surface of the cylinder 1 is also provided with a first level gauge transmitter port 102 and a first liquid outlet 103, which open into the first cavity 7. The first level gauge transmitter port 102 is used to install a level gauge to monitor the liquid level in the first cavity 7 in real time, allowing operators to promptly grasp the operating status inside the coalescer. The first liquid outlet 103 can be opened during equipment maintenance or when residual media in the first cavity 7 needs to be discharged, such as liquid further separated by the guide plate 10, to ensure the smooth progress of maintenance work.

[0026] Furthermore, an inlet 104 is provided on the surface of the cylinder 1, which opens into the second cavity 8. A blade separator 11 is also provided near the inlet 104 within the second cavity 8. A second level gauge transmitter port 105 and an automatic drain port 106 are also provided on the surface of the cylinder 1, both opening into the second cavity 8.

[0027] After the medium to be processed enters the second cavity 8 through the inlet 104, it first passes through the blade separator 11. The blade separator 11 can perform preliminary gas-liquid separation of the medium, separating some of the liquid in the medium and letting it fall into the second cavity 8. The insufficiently separated gas-liquid mixture flows through the channels of the support rod 901 and through the filter element 902 to the first cavity 7 for further separation. The second level gauge transmitter port 105 is used to install a level gauge to monitor the liquid level of the medium in the second cavity 8 in real time, providing data support for the stable operation of the coalescer. The automatic drain port 106 is connected to an automatic draining device. When the liquid separated in the second cavity 8 reaches the set liquid level, the automatic draining device will open the automatic drain port 106 to discharge the liquid in time, avoiding excessive accumulation of liquid in the second cavity 8, which would affect the normal operation of the coalescer.

[0028] Furthermore, pressure transmitter ports 107, respectively connecting to the first cavity 7 and the second cavity 8, are provided on the surface of the cylinder 1. The pressure transmitter port 107 connected to the first cavity 7 monitors the pressure state of the medium after passing through the filter element 902, while the pressure transmitter port 107 connected to the second cavity 8 collects pressure data of the medium during the initial separation stage in real time. By comparing the pressure difference obtained from the two pressure transmitter ports 107, operators can accurately determine the degree of blockage and operating condition of the filter element 902. When the pressure difference exceeds a preset threshold, timely shutdown for maintenance or replacement of the filter element 902 can be arranged to ensure that the coalescer maintains high-efficiency separation performance. Simultaneously, real-time monitoring of pressure data provides important parameter data for the automated control of the entire coalescing system, contributing to intelligent adjustment and stable operation of the coalescing process.

[0029] Furthermore, a lifting lug 501, a pressure gauge port 502, and a thermometer port 503 are also provided on the surface of the first end cap 5. A second liquid outlet 601 is also provided on the second end cap 6. The lifting lug 501 facilitates the overall lifting and transportation of the coalescing device, and can be used with lifting equipment to achieve smooth movement of the equipment during installation and maintenance, effectively reducing the intensity of manual operation. The pressure gauge port 502 is used to connect a pressure gauge to monitor the pressure inside the first cavity 7 in real time, forming a multi-dimensional pressure monitoring complementary system with the pressure transmitter port 107 on the cylinder 1, further improving the comprehensiveness of the system's operating pressure monitoring. The thermometer port 503 can be fitted with a thermometer to collect the temperature data of the medium inside the first cavity 7 in real time, allowing operators to promptly grasp the potential impact of medium temperature changes on the coalescing and separation effect. The second liquid outlet 601 ensures that the separated liquid can be discharged smoothly and promptly, avoiding liquid accumulation in the second cavity 8. Together with the automatic drain port 106, it forms a double drainage guarantee, effectively improving the drainage efficiency and safety during the operation of the coalescer.

[0030] Furthermore, the coalescer also includes support legs 12, one end of which is connected to the cylinder 1, and the other end is fixed to the ground via anchor bolts. The coalescer also includes a grounding plate 13 connected to the support legs 12. The support legs 12 provide stable support for the entire coalescer, ensuring structural stability during operation and preventing positional shifts caused by equipment vibration or media flow impact. The grounding plate 13 is tightly connected to the support legs 12 via bolts. As an important safety design, it eliminates static electricity buildup, promptly conducting static electricity generated during equipment operation to the ground, forming a complete static electricity protection path. This, combined with the equipment's pressure and temperature monitoring system, further enhances the coalescer's safe operating coefficient under complex conditions.

[0031] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A coalescer facilitating access for maintenance, characterized by: The coalescer includes a filter plate (2) disposed inside a cylindrical body (1), a flange ring (3) disposed along the inner wall of the cylindrical body (1), the filter plate (2) being disposed on the flange ring (3), and the filter plate (2) and the flange ring (3) forming a partial abutment; a positioning sleeve (4) is also uniformly disposed on the surface of the filter plate (2), and the coalescer also includes a filter element assembly (9), the filter element assembly (9) being fitted with the positioning sleeve (4).

2. The coalescer as described in claim 1, characterized in that: The coalescer further includes a first end cap (5) connected to the top of the cylinder (1) and a second end cap (6) connected to the bottom of the cylinder (1). The filter plate (2) forms a first cavity (7) and a second cavity (8) with the cylinder (1), the first end cap (5) and the second end cap (6).

3. A coalescer for ease of service according to claim 2 wherein: The filter element assembly (9) includes a support rod (901), a filter element (902), and a bolt (903). The support rod (901) is threaded into the positioning sleeve (4). A baffle (9011) is also provided on the surface of the support rod (901). The filter element (902) is sleeved on the support rod (901) and one end abuts against the baffle (9011). The bolt (903) is engaged with the support rod (901) and abuts against the other end of the filter element (902).

4. A coalescer that is easy to maintain as described in claim 3, characterized in that: An outlet (101) is provided on the surface of the cylinder (1) to the first cavity (7), and a guide plate (10) is also provided on the inner wall of the cylinder (1) near the outlet (101) in the first cavity (7); a first level transmitter port (102) and a first liquid outlet (103) are also provided on the surface of the cylinder (1) to the first cavity (7).

5. A coalescer for ease of service according to claim 4 wherein: An inlet (104) is provided on the surface of the cylinder (1) to the second cavity (8), and a blade separator (11) is also provided near the inlet (104) in the second cavity (8); a second level transmitter port (105) and an automatic drain port (106) are also provided on the surface of the cylinder (1) to the second cavity (8).

6. A coalescer for ease of service according to claim 5 wherein: Pressure transmitter ports (107) are also provided on the surface of the cylinder (1), which are respectively connected to the first cavity (7) and the second cavity (8).

7. A coalescer for ease of service according to claim 6 wherein: The first end cap (5) is also provided with a lifting lug (501), a pressure gauge port (502) and a thermometer port (503).

8. A coalescer that is easy to maintain as described in claim 7, characterized in that: The second end cap (6) is also provided with a second liquid outlet (601).

9. A coalescer for ease of service according to claim 8 wherein: The coalescer also includes a support leg (12), one end of which is connected to the cylinder (1).

10. A coalescer that is easy to maintain as described in claim 9, characterized in that: The coalescing device also includes a grounding plate (13) connected to the leg (12).