Vertical liquid-liquid coalescence separator
By using a wire mesh coalescer made of a mixture of metal and non-metal materials and installing a washing distributor in a vertical liquid-liquid coalescing separator, the problem of coalescing clogging was solved, achieving efficient separation of oil, water, and impurities, and ensuring the continuity of the production process and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2026-03-10
AI Technical Summary
In existing technologies, coalescers are prone to clogging after prolonged use, leading to increased pressure differential, poor coalescence effect, and inability to effectively separate oil, water, and impurities.
A vertical liquid-liquid coalescing separator is adopted, using a wire mesh coalescing device made of a mixture of metal and non-metal materials. A washing distributor is installed on the separator to clean the coalescing device, thereby solving the clogging problem and improving the separation efficiency.
By cleaning the coalescer, the separator can be kept running efficiently, ensuring effective separation of oil, water, and impurities, and preventing blockages from affecting the production process.
Smart Images
Figure CN223980134U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of separator especially relates to a vertical liquid-liquid coalescer. BACKGROUND
[0002] In the field of chemical production, the separation of oil and water and the removal of impurities in oil are crucial links. For some specific process, efficient and reliable equipment is needed to finely process oil containing methanol and other impurities, so as to realize accurate separation of oil and water, ensure product quality and smooth production process. The vertical liquid-liquid coalescer is mainly used for deep processing of oil containing water and methanol (or acid, alkali water) and other impurities to meet the demand of industry for pure oil products and ensure that the product will not be affected by oil quality problems in the production process.
[0003] At present, the common separation method of oil and water and methanol (or acid, alkali water) and other impurities is gravity separation. However, gravity separation mainly relies on the density difference of oil, impurities and other components to realize separation. According to the density difference or chemical properties of water and oil, the principle of gravity sedimentation or other physical and chemical reactions are used to remove impurities or complete the separation of oil and water. In the prior art, under the action of coalescer, water and methanol (or acid, alkali water) and other impurities can gradually coalesce and become large and realize the separation with oil. However, when the coalescer is blocked after long time use, the pressure difference becomes large and the coalescence effect is poor. SUMMARY
[0004] In order to make up for the above shortcomings, the utility model provides a vertical liquid-liquid coalescer, which aims at improving the problem of poor coalescence effect caused by large pressure difference when the coalescer is blocked after long time use in the prior art.
[0005] In order to realize the above purpose, the utility model adopts the following technical scheme:
[0006] A vertical liquid-liquid coalescer, comprising a separator main body, a liquid inlet is arranged at the middle position of the separator main body, a light phase outlet is arranged at the upper part, and a heavy phase outlet is arranged at the lower part; a coalescer is fixedly arranged in the interior of the separator main body, which is used for coalescing small droplets into large droplets; the coalescer is arranged above the liquid inlet and on the whole cross section of the separator main body.
[0007] As a further description of the above technical scheme: the coalescer is a wire mesh coalescer mixed with metal material and non-metal material.
[0008] As a further description of the above technical solution: the upper portion of the separator body is further provided with a washing port, the washing port is connected with a washing distributor inside the separator body, the washing distributor is arranged at the water outlet of the washing port and above the coalescer.
[0009] As a further description of the above technical solution: the washing distributor comprises a washing main pipe and a plurality of distribution branch pipes; the washing main pipe is connected with the washing port, the plurality of distribution branch pipes are arranged below the washing main pipe, and the washing main pipe is in communication with the plurality of distribution branch pipes; and holes are arranged below the distribution branch pipes.
[0010] As a further description of the above technical solution: the lengths of the plurality of distribution branch pipes are not the same, and the length of the distribution branch pipe located at the middle position is greater than the lengths of the distribution branch pipes located at the two sides.
[0011] As a further description of the above technical solution: the lower portion of the distribution branch pipe is further provided with a distribution groove, the distribution groove is a groove structure with an open upper portion, and the distribution branch pipe is arranged in the distribution groove.
[0012] As a further description of the above technical solution: a plurality of liquid flow V-shaped openings are arranged on the groove walls of the left and right sides of the distribution groove at equal intervals, and the liquid flow V-shaped openings are in V-shaped shapes.
[0013] As a further description of the above technical solution: the distribution branch pipe is fixed to the distribution groove through a support, the support is in a rectangular structure, has a circular opening in the middle for the distribution branch pipe to pass through, and the edges of the support are fixed to the inner sides of the distribution groove.
[0014] The utility model has the advantages of the following:
[0015] In the utility model, when the coalescer is congested or has poor coalescing effect, water or acid is delivered to the coalescer through the washing distributor for cleaning, so that the separation efficiency of the coalescer is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 A perspective view of a vertical liquid-liquid coalescing separator is provided for the utility model;
[0017] Fig. 2 A sectional view of a coalescer of a vertical liquid-liquid coalescing separator is provided for the utility model;
[0018] Fig. 3 A structure schematic view of a washing distributor of a vertical liquid-liquid coalescing separator is provided for the utility model.
[0019] LEGEND:
[0020] 1, separator body; 2, coalescer; 3, washing distributor; 301, washing main pipe; 302, distribution branch pipe; 303, distribution groove; 304, liquid flow V port; 4, washing valve; 5, washing port; 7, liquid inlet; 8, light phase outlet; 6, heavy phase outlet. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0022] Referring to Figs. 1-3 An embodiment provided by the utility model: a vertical liquid-liquid coalescing separator, comprising a separator body 1, the middle position of the separator body 1 is provided with a liquid inlet 7, the upper part is provided with a light phase outlet 8, and the lower part is provided with a heavy phase outlet 6.
[0023] The inside of the separator body 1 is fixedly provided with a coalescer 2, which is used for separating oil, water, methanol (or acid, alkali water) and other impurities. The coalescer 2 is arranged at the upper position of the liquid inlet 7.
[0024] The coalescer 2 uses the characteristics that methanol is dissolved in water, uses the effect of direct interception or collision, and coalesces small droplets into large droplets. The coalescer 2 is arranged on the entire cross section of the separator body 1, so as to maximize the coverage of the material flow area, and to ensure that all materials entering the separator body 1 will pass through the coalescer 2 for sedimentation separation, coalesce small droplets into large droplets, so as to facilitate the more effective separation of methanol, acid and alkali from oil.
[0025] The coalescer 2 preferably adopts a wire mesh coalescer mixed with metal materials and non-metal materials, which is woven from multiple layers of stainless steel wire mesh or other special alloy wire mesh and ptfe, pp, glass fiber or polyester material. In the process of fluid flow, the small droplets flow on the surface of the wire mesh along with the fluid. Due to the obstruction of the wire mesh and the surface tension, the droplets continuously collide and merge. The wire diameter, mesh number and layer number of the specific wire mesh are designed according to the actual separation requirements in the production process.
[0026] The upper part of the separator body 1 is also provided with a washing port 5, and the washing port 5 is connected with a washing distributor 3 in the inside of the separator body 1, which is specifically arranged at the water outlet of the washing port 5 of the separator body 1 and located above the coalescer 2, used for providing water or acid to the coalescer 2 for flushing if the coalescer is blocked after long-term use.
[0027] like Fig. 3 As shown, the washing distributor 3 includes a main washing pipe 301, branch pipes 302, and a distribution trough 303. The main washing pipe 301 is connected to the washing inlet 5, and several branch pipes 302 are arranged below it, with the main washing pipe 301 communicating with the branch pipes 302. The extending direction of the branch pipes 302 is perpendicular to the extending direction of the main washing pipe 301, and the several branch pipes 302 are arranged parallel to each other.
[0028] The lengths of the several distribution branch pipes 302 are not the same, and the two ends of each distribution branch pipe 302 are close to the side wall of the separator body 1. The length of the distribution branch pipe 302 is related to its position. Since the cross-section of the separator body 1 is circular, the distribution branch pipe 302 located in the middle position is longer than the distribution branch pipes 302 located on both sides.
[0029] The distribution branch pipe 302 has holes at its lower part for feeding material outflow. There are several holes at the lower part of the distribution branch pipe 302, which are evenly distributed to distribute the feeding material evenly.
[0030] Below the distribution branch pipe 302, a distribution groove 303 is also provided. The distribution groove 303 is a groove structure with an opening at the top, and the distribution branch pipe 302 is placed in the distribution groove 303. Several liquid flow V-ports 304 are equally spaced on the groove walls on both sides of the distribution groove 303. The liquid flow V-ports 304 are V-shaped. The feed flowing out of the distribution branch pipe 302 enters the distribution groove 303, and when the feed liquid fills the distribution groove 303, it flows out from the liquid flow V-ports 304 of the distribution groove 303 and enters the coalescer 2.
[0031] The distribution branch pipe 302 is fixed to the distribution groove 303 by a bracket. The bracket has a rectangular structure with a circular opening in the middle for the distribution branch pipe 302 to pass through, and the edge of the bracket is fixed to the inner side of the distribution groove 303.
[0032] A delivery pump 4 is installed on the pipeline connecting the separator body 1 to the washing port 5, which is used to deliver water or acid to the washing distributor 3 during cleaning.
[0033] The inlet 7 is connected to an external storage tank, and a pump is installed on the inlet pipe to transport oil and water containing impurities such as water and methanol (or acid or alkaline water) from the external storage tank to the coalescer body 1. The light phase outlet 8 discharges the separated light phase oil from the separator body 1 and transports it to downstream units for further processing, realizing oil recycling and continuous production. The heavy phase outlet 6 discharges the separated heavy phase impurities from the separator body 1 and transports them to downstream units for harmless treatment.
[0034] A level gauge is also installed on the side of the coalescing body 1, which can show the liquid level stratification in the coalescing body 1.
[0035] Working principle: First, the pump is turned on, and oil and water containing impurities such as water and methanol (or acid, alkali water) are transported to the separator body 1 through the inlet 7. The pressure and valve size are controlled by the DCS remote transmission system, and the liquid level stratification is observed by the level gauge. In the separator body 1, the light phase oil moves upward, while the heavy phase water and methanol (or acid, alkali water) and other impurities move downward. When the light phase oil moves upward and passes through the coalescer 2, the heavy phase impurities are further coalesced and separated, so that water, methanol, acid, alkali and other impurities can be separated from the oil more effectively.
[0036] When the coalescer 2 becomes clogged after prolonged use, the pressure differential increases, resulting in poor coalescence. A cleaning operation can then be performed. Specifically, water (or acid, depending on the specific process conditions) is supplied to the washing distributor 3 through the washing port 5. The water (or acid) enters the distribution tank 303 through the distribution branch pipe 302 and is evenly distributed through the liquid flow port 304, then enters the coalescer 2 to flush it.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A vertical liquid-liquid coalescer separator comprising a separator body (1), characterized in that, The middle position of the separator body (1) is provided with a liquid inlet (7), the upper part is provided with a light phase outlet (8), and the lower part is provided with a heavy phase outlet (6); The inside of the separator body (1) is fixedly provided with a coalescer (2) for coalescing small droplets into large droplets; The coalescer (2) is arranged above the liquid inlet (7) and covers the entire cross section of the separator body (1); The upper part of the separator body (1) is also provided with a washing port (5), and the washing port (5) is connected with a washing distributor (3) in the inside of the separator body (1), the washing distributor (3) is arranged at the water outlet of the washing port (5) and above the coalescer (2).
2. The vertical liquid-liquid coalescer according to claim 1, wherein, The washing distributor (3) comprises a washing main pipe (301) and a distribution branch pipe (302); The washing main pipe (301) is connected with the washing port (5), and a plurality of distribution branch pipes (302) are arranged below the washing main pipe (301), and the washing main pipe (301) is connected with a plurality of distribution branch pipes (302); The lower part of the distribution branch pipe (302) is provided with a hole.
3. The vertical liquid-liquid coalescer of claim 2, wherein, The lengths of the plurality of distribution branch pipes (302) are not the same, and the length of the distribution branch pipe (302) located in the middle position is greater than the length of the distribution branch pipe (302) located on both sides.
4. The vertical liquid-liquid coalescer of claim 2, wherein, The lower part of the distribution branch pipe (302) is also provided with a distribution groove (303), and the distribution groove (303) is a groove structure with an open upper part, and the distribution branch pipe (302) is arranged in the distribution groove (303).
5. The vertical liquid-liquid coalescer of claim 4, wherein, The left and right groove walls of the distribution groove (303) are provided with a plurality of liquid flow V ports (304) at equal intervals, and the shape of the liquid flow V port (304) is V-shaped.
6. The vertical liquid-liquid coalescer of claim 4, wherein, The distribution branch pipe (302) is fixed with the distribution groove (303) through a support, the support is a rectangular structure, there is a circular opening in the middle for the distribution branch pipe (302) to pass through, and the edges of the support are fixed with the inner side of the distribution groove (303).