Defoaming device for solid defoaming process
By setting up two independent filtering intake passages and filtering devices in the natural gas defoaming device, the problem of interruption of solid impurities removal and transportation in the sand-out gas well is solved, and the effective filtration and defoaming efficiency of solid impurities in natural gas is achieved. .
Patent Information
- Application Number
- CN202420959852.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The existing solid defoaming device is difficult to effectively remove solid impurities in the sand-out gas well, resulting in poor natural gas delivery and low defoaming efficiency. The natural gas delivery needs to be suspended during maintenance or replacement of the filtration device.
A defoaming device of solid defoaming process is designed. By setting two intake passages and filtering devices in the main pipe assembly, each passage is filtered independently to ensure that the solid impurities in the natural gas are effectively filtered and during maintenance or replacement. There is no need to discontinue natural gas delivery.
It realizes effective removal of solid impurities in natural gas, ensures the continuity of natural gas transportation and defoaming efficiency, avoids solid impurities accumulation and blockage of the filter device, and improves the adaptability of the defoaming device.
Smart Images
Figure CN222209973U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of defoaming technology for natural gas production, in particular to a defoaming device for a solid defoaming technology. Background Art
[0002] During the exploitation process of natural gas wells, it is often necessary to add auxiliary processes such as foam drainage agents to carry out foam drainage production. After the added foam drainage agent foams, a large amount of foam-containing formation water enters the ground pipeline along with the natural gas, which will cause the gas-liquid separator of the gas well to be unclean, affecting the downstream triethylene glycol dehydration and polluting the environment. Based on this, it is extremely important to eliminate the foam in the ground pipeline.
[0003] In the prior art, a vertical solid defoaming agent filling device is disclosed in the patent application number CN201520046258.5, which achieves the purpose of defoaming the natural gas in the main pipe assembly by vertically arranging a defoaming rod in the main pipe assembly.
[0004] However, in actual use, the above-mentioned device is difficult to adapt to the defoaming in sand-producing gas wells, because the sand-producing gas wells contain more solid impurities, which are easily accumulated at the bottom of the main pipe assembly after the natural gas is transported to the main pipe assembly, causing poor natural gas transportation; at the same time, after some solid impurities enter the main pipe assembly, the sieve holes on the side wall of the defoaming rod will be blocked, affecting the normal contact between the defoaming agent and the natural gas, and thus seriously affecting the defoaming efficiency. Utility Model Content
[0005] The utility model aims to provide a defoaming device for a solid defoaming process, which can remove solid impurities produced in natural gas wells and effectively prevent the solid impurities from having adverse effects on natural gas transportation and defoaming operations.
[0006] The purpose of this utility model is achieved through the following technical solutions:
[0007] A defoaming device for a solid defoaming process comprises a main pipe assembly and a defoaming component arranged inside the main pipe assembly; the main pipe assembly is connected to a first branch pipe, the air inlet end of the first branch pipe is respectively connected to two second branch pipes, the air inlet ends of the two second branch pipes are commonly connected to a third branch pipe, and each of the second branch pipes is provided with a filtering device and a valve.
[0008] Preferably, the filtering device comprises a filtering box arranged on the second branch pipe and a filtering net arranged inside the filtering box.
[0009] Preferably, the top wall of the filter box is provided with a top cover, and the filter net is detachably connected to the filter box.
[0010] Preferably, a sewage discharge base is provided at the bottom of the filter box and located on the feed side of the filter screen.
[0011] Preferably, the first orifice plate, the second orifice plate and the third orifice plate are sequentially distributed inside the main pipe assembly from top to bottom; the defoaming component includes a defoaming tube and a plurality of defoaming rods arranged inside the defoaming tube; a plurality of holes are arranged on the side wall of the defoaming tube; the defoaming tube is detachably arranged between the first orifice plate, the second orifice plate and the third orifice plate; the first orifice plate and the second orifice plate are detachably connected.
[0012] Preferably, a plurality of insertion holes are provided on the mutually adjacent sides of the first orifice plate and the top end of the defoaming tube is inserted into the insertion hole of the first orifice plate and the bottom end of the defoaming tube passes through the second orifice plate and extends into the insertion hole of the third orifice plate.
[0013] Preferably, a plurality of support rods are arranged between the second orifice plate and the third orifice plate, and the plurality of support rods divide the main pipe assembly into a plurality of areas for installing defoaming pipes.
[0014] Preferably, a bottom cover is provided at the bottom end of the main pipe assembly.
[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0016] By providing a first branch pipe connected to the main pipe assembly, two second branch pipes connected to the air inlet end of the first branch pipe, and a third branch pipe connected to the air inlet ends of the two second branch pipes, two air inlet passages can be formed outside the main pipe assembly (i.e., the third branch pipe→one of the second branch pipes→the first branch pipe→the main pipe assembly, and the third branch pipe→the other second branch pipe→the first branch pipe→the main pipe assembly), and any air inlet passage can be selected for natural gas transportation; by providing a filtering device in each second branch pipe, the natural gas can be filtered when each air inlet passage is used, so as to prevent solid impurities in the natural gas from accumulating at the bottom of the main pipe assembly or clogging the defoaming component, etc.; in addition, due to the provision of two air inlet passages, when the filtering device in any air inlet passage is repaired or replaced, the use of this air inlet passage can be stopped, and the other air inlet passage can be opened, so that there is no need to suspend the natural gas transportation when the filtering device is repaired or replaced, thereby ensuring continuous transportation of natural gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the utility model in the front view direction;
[0018] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the filter device in the front view direction;
[0019] Figure 3for Figure 1 A schematic diagram of the cross-sectional structure of the middle main pipe assembly in the front view direction;
[0020] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of the middle defoaming tube in the top view direction;
[0021] Figure 5 for Figure 1 A schematic diagram of the structure of the third orifice plate in the top view;
[0022] In the figure: 100-main pipe assembly, 110-first branch pipe, 120-second branch pipe, 130-third branch pipe, 140-valve, 150-filter box, 160-filter screen, 170-top cover, 180-drain base, 190-first orifice plate, 200-second orifice plate, 250-third orifice plate, 210-defoaming pipe, 230-jack, 240-support rod, 260-bottom cover, 270-main circuit. DETAILED DESCRIPTION
[0023] Example 1
[0024] A defoaming device for a solid defoaming process, such as Figure 1-3 As shown, it includes a main pipe assembly 100 perpendicular to the ground, and a defoaming component arranged inside the main pipe assembly 100; Figure 1 As shown, the main pipe assembly 100 is connected to a first branch pipe 110, the air inlet end of the first branch pipe 110 is respectively connected to two second branch pipes 120, and the air inlet ends of the two second branch pipes 120 are commonly connected to a third branch pipe 130, each of the second branch pipes 120 is provided with a filter device and two valves 140 (existing technology), and the two valves 140 are respectively arranged on both sides of the filter device; the defoaming component is arranged above the liquid outlet end of the first branch pipe 110, and an air outlet pipe is also arranged on the side wall of the main pipe assembly 100 and located above the liquid outlet end of the first branch pipe 110. Figure 1 As shown, the top of the main pipe assembly 100 is blocked by a cover valve (refer to the patent application number CN201520046258.5), and the side wall of the main pipe assembly 100 is provided with an air outlet pipe, and the air outlet pipe is provided with a valve. Figure 1 As shown, the air inlet end of the third branch pipe 130 and the liquid outlet end of the air outlet pipe are both connected to the main circuit 270, and a valve is provided on the main circuit 270. Figure 1 The direction of the middle arrow is the direction of natural gas transportation.
[0025] Working principle: The utility model forms two air intake passages outside the main pipe assembly 100 (i.e., the third branch pipe 130→one of the second branch pipes 120→the first branch pipe 110→the main pipe assembly 100, and the third branch pipe 130→the other second branch pipe 120→the first branch pipe 110→the main pipe assembly 100). Any air intake passage can be selected for natural gas transportation; when one of the air intake passages is selected, the two valves 140 on the air intake passage are opened, and the two valves 140 in the other air intake passage are closed. When the natural gas is transported to the second branch pipe 120, it is filtered by the filtering device, and then, when it enters the main pipe assembly 100 along the first branch pipe 110, it is then defoamed from bottom to top through the defoaming component, and then discharged into the main circuit 270 along the outlet pipe.
[0026] Through the synergistic effect of the above-mentioned devices, solid impurities in natural gas production can be filtered. At the same time, when the filtering device is repaired or replaced, natural gas can be transported uninterruptedly to ensure the transportation efficiency.
[0027] In summary, when the natural gas is being defoamed (i.e., when the natural gas is being transported to the air intake passage), the valve on the main circuit 270 needs to be closed, and the valve on any second branch pipe 120 and the valve on the outlet pipe need to be opened. When the defoaming component is replaced or installed, the valve on the main circuit 270 needs to be opened, and the valves on the second branch pipe 120 and the outlet pipe need to be closed to ensure uninterrupted delivery of natural gas.
[0028] Further, on the basis of Example 1, Figure 2 As shown, the filtering device includes a filter box 150 arranged on the second branch pipe 120 and a filter screen 160 arranged inside the filter box 150. Further, a top cover 170 is provided on the top wall of the filter box 150, and the filter screen 160 is detachably connected to the filter box 150. Further, a sewage discharge base 180 is provided at the bottom of the filter box 150 and located on the feeding side of the filter screen 160. The sewage discharge base 180 and the filter box 150, as well as the top cover 170 and the filter box 150 are fixed by bolts, and after fixing, the filter box 150 is in a sealed state.
[0029] Working principle: After the natural gas in the third branch pipe 130 is transported to the filter box 150, the solid impurities in the natural gas are blocked by the filter 160 to ensure that the natural gas entering the main pipe assembly 100 contains no or less solid impurities. When the filter 160 is blocked, the top cover 170 is opened and the filter 160 is removed for cleaning or replacement. Since the solid impurities are mostly accumulated on the right side of the filter 160, the solid impurities accumulated on the right side of the filter 160 can be removed by opening the sewage discharge base 180.
[0030] Further, on the basis of Example 1, Figure 1 As shown, the first orifice plate 190, the second orifice plate 200 and the third orifice plate 250 are sequentially distributed inside the main pipe assembly 100 from top to bottom; the defoaming component includes a defoaming pipe 210 and a plurality of defoaming rods (existing technology) arranged inside the defoaming pipe 210; the side wall of the defoaming pipe 210 is provided with a plurality of holes (not shown in the figure); the defoaming pipe 210 is detachably arranged between the first orifice plate 190, the second orifice plate 200 and the third orifice plate 250; the first orifice plate 190 and the second orifice plate 200 are detachably connected. Further, as Figure 5 As shown, the first orifice plate 190 and the third orifice plate 250 are provided with a plurality of insertion holes 230 on the sides close to each other, the top end of the defoaming tube 210 is inserted into the insertion hole 230 of the first orifice plate 190, and the bottom end of the defoaming tube 210 passes through the second orifice plate 200 and extends into the insertion hole 230 of the third orifice plate 250. Figure 3 and Figure 4 As shown, a plurality of support rods 240 are arranged between the second orifice plate 200 and the third orifice plate 250, and the plurality of support rods 240 divide the main pipe assembly 100 into a plurality of areas for installing the defoaming pipe 210. Furthermore, a plurality of through holes (not shown) are arranged on the third orifice plate 250 for facilitating the passage of natural gas.
[0031] In specific implementation, the second orifice plate 200 and the third orifice plate 250 are fixedly installed in the main pipe assembly 100, and the first orifice plate 190 is connected to the second orifice plate 200 by bolts. Specifically, the bottom end of the defoaming tube 210 with the defoaming rod installed is passed through the second orifice plate 200 (the second orifice plate 200 is pre-set with a hole for the defoaming tube 210 to pass through) and moved down to the socket 230 on the third orifice plate 250, and then the first orifice plate 190 is installed to the top surface of the second orifice plate 200 by bolts. During installation, the top ends of multiple defoaming tubes 210 need to be inserted one by one into the sockets 230 on the bottom surface of the first orifice plate 190. Specifically, when the defoaming tubes 210 are actually installed, the number of installed ones is less than or equal to the number of sockets 230 in the third orifice plate 250. Thereafter, the cover valve at the top of the main pipe assembly 100 can be installed according to the prior art (patent with application number CN201520046258.5).
[0032] In actual use, the number of the above-mentioned defoaming tubes 210 is most suitable for the current gas well production status. Once the gas well production status changes, such as the need to adjust the defoaming strength of the defoaming tubes 210 according to the gas well gas and water production, pressure, etc., the number of defoaming tubes 210 needs to be changed to meet the new defoaming needs. Specifically, when the defoaming strength needs to be increased, the cover valve and the first orifice plate 190 are opened, and defoaming tubes 210 are added on the original basis (the premise is that the number of defoaming tubes 210 initially added is less than the number of jacks 230). If the defoaming strength needs to be reduced, some defoaming tubes 210 are appropriately removed.
[0033] Through the synergistic effect of the above-mentioned devices, it is possible to easily adjust the number of defoaming tubes 210 and thus flexibly adjust the defoaming strength.
[0034] Further, such as Figure 1 As shown, in order to facilitate the inspection and maintenance of the interior of the main pipe assembly 100, a bottom cover 260 is provided at the bottom end of the main pipe assembly 100 by bolts.
[0035] In the description of this patent, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "longitudinal", "horizontal" and the like indicate the orientation or position relationship based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing this patent and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of this patent.
Claims
1. A defoaming device for a solid defoaming process, comprising a main pipe assembly (100), and a defoaming component arranged inside the main pipe assembly (100); characterized in that: The main pipe assembly (100) is connected to a first branch pipe (110); the air inlet end of the first branch pipe (110) is respectively connected to two second branch pipes (120); the air inlet ends of the two second branch pipes (120) are commonly connected to a third branch pipe (130); and each of the second branch pipes (120) is provided with a filtering device and a valve (140).
2. The defoaming device of a solid defoaming process according to claim 1, characterized in that: The filtering device comprises a filtering box (150) arranged on the second branch pipe (120) and a filtering net (160) arranged inside the filtering box (150).
3. The defoaming device of a solid defoaming process according to claim 2, characterized in that: The top wall of the filter box (150) is provided with a top cover (170), and the filter net (160) is detachably connected to the filter box (150).
4. The defoaming device of a solid defoaming process according to claim 3, characterized in that: A sewage discharge base (180) is provided at the bottom of the filter box (150) and located on the feeding side of the filter screen (160).
5. The defoaming device for a solid defoaming process according to claim 1, characterized in that: A first orifice plate (190), a second orifice plate (200) and a third orifice plate (250) are sequentially arranged inside the main pipe assembly (100) from top to bottom; the defoaming component comprises a defoaming pipe (210) and a plurality of defoaming rods arranged inside the defoaming pipe (210); a plurality of holes are arranged on the side wall of the defoaming pipe (210); the defoaming pipe (210) is detachably arranged between the first orifice plate (190), the second orifice plate (200) and the third orifice plate (250); and the first orifice plate (190) and the second orifice plate (200) are detachably connected.
6. The defoaming device of a solid defoaming process according to claim 5, characterized in that: A plurality of insertion holes (230) are provided on the mutually adjacent sides of the first orifice plate (190) and the third orifice plate (250); the top end of the defoaming tube (210) is inserted into the insertion hole (230) of the first orifice plate (190); and the bottom end of the defoaming tube (210) passes through the second orifice plate (200) and extends into the insertion hole (230) of the third orifice plate (250).
7. The defoaming device of a solid defoaming process according to claim 6, characterized in that: A plurality of support rods (240) are also arranged between the second orifice plate (200) and the third orifice plate (250), and the plurality of support rods (240) divide the main pipe assembly (100) into a plurality of areas for installing defoaming pipes (210).
8. The defoaming device for a solid defoaming process according to claim 1, characterized in that: A bottom cover (260) is provided at the bottom end of the main pipe assembly (100).