Oil-water separator for preparing pure ammonia gas
By introducing a grading wheel and a hydrophobic lipophilic film into the oil-water separator, and using centrifugal force and lipophilic film separation technology, the problem of difficulty in removing fine emulsions in the prior art is solved, and efficient ammonia purification and simplified purification process is achieved.
Patent Information
- Application Number
- CN202422318842.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-23
AI Technical Summary
Existing oil-water separators are difficult to effectively remove fine emulsions with particle sizes of 1-20μm in ammonia, resulting in an increase in the complexity of subsequent ammonia purification.
A graded wheel and a hydrophobic lipophilic film are provided in the oil-water separator. The emulsion particles with a particle size greater than 1 μm are removed by centrifugal force, and the oil-water is separated by the hydrophobic lipophilic film, and the discharge is controlled in combination with a liquid level sensor.
The purity of ammonia is improved, the subsequent purification steps are simplified, and the efficiency of removing emulsion particles is improved.
Smart Images
Figure CN223096187U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an oil-water separator for preparing pure ammonia gas, belonging to the technical field of gas-liquid separation. Background Art
[0002] Since electronic-grade ammonia water is indispensable in the production process of advanced processes of ultra-large-scale integrated circuits, it is used in multiple steps and cannot be replaced in its production process. It can also be said that electronic-grade ammonia water, as one of the important chemical materials in the production process of advanced processes of ultra-large-scale integrated circuits, has a very important position. In the preparation process of electronic-grade ammonia water, industrial-grade liquid ammonia needs to be converted into ammonia gas and purified. During the purification process, an oil-water separator is required to remove the oil and water in the liquid ammonia. For a traditional oil-water separator that separates by gravity, it is difficult to remove small emulsified liquid particles in the case of a stable emulsion formed by water and oil in the liquid. This separator can remove emulsified liquid with a relatively large particle size (particle size between 20 - 150um) through filtration, while it is difficult to remove emulsified liquid with a fine particle size (particle size between 1 - 20um), which easily leads to more emulsified liquid particles being carried when the gas is discharged, increasing the complexity of subsequent ammonia gas purification and resulting in a cumbersome production process for pure ammonia gas. Summary of the Invention
[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an oil-water separator for preparing pure ammonia gas, which is used to remove emulsified liquid particles with a particle size greater than 1um carried in ammonia gas at one time during the oil-water separation of ammonia gas. It can effectively simplify the complex means of subsequent ammonia gas purification, has a good efficiency in removing emulsified liquid particles, and has a good application prospect.
[0004] To achieve the above purpose, the utility model is implemented by adopting the following technical solution:
[0005] An oil-water separator for preparing pure ammonia gas provided by the utility model includes a tank body, an air inlet pipe and an air outlet pipe are communicatedly arranged on the tank body, an oil-water separation pipe is arranged inside the tank body, a filtering component is arranged at the position of the air inlet of the air outlet pipe inside the tank body, the filtering component covers the air inlet of the air outlet pipe and forms an air outlet chamber inside the tank body, a grading wheel is rotatably arranged inside the air outlet chamber, a driving component for driving the grading wheel to rotate is arranged outside the tank body, and the air inlet of the air outlet pipe is communicated with the air outlet passage of the grading wheel.
[0006] Specifically, an oil outlet pipe and a drain pipe are respectively and communicatedly arranged at the bottom of the tank body, and the height of the liquid inlet of the oil outlet pipe is higher than the height of the liquid inlet of the drain pipe.
[0007] Specifically, a liquid level sensor is provided on the tank body and below the liquid inlet of the oil outlet pipe.
[0008] Specifically, a hydrophobic and oleophilic membrane is provided inside the oil outlet pipe and near the liquid inlet. The hydrophobic and oleophilic membrane covers the cross-section of the oil outlet pipe, and the hydrophobic and oleophilic membrane is one of polyvinylidene fluoride, polytetrafluoroethylene, polypropylene, polyethylene, silicone-based material membrane, and nanofiber membrane.
[0009] Specifically, the filter assembly is integrally cylindrical, and the surface of the filter assembly is provided with trapping mesh openings for trapping fine particles.
[0010] Specifically, the intake pipe is L-shaped, an umbrella-shaped plate is provided inside the tank body, and the air outlet of the intake pipe points to the top surface of the umbrella-shaped plate.
[0011] Specifically, the tank body is integrally cylindrical, and the blowing direction of the intake pipe is tangent to the inner wall of the tank body.
[0012] Specifically, the filter assembly is a densely arranged metal mesh.
[0013] Specifically, a number of nozzles are installed on the filter assembly, and each nozzle points to the position of the classification wheel.
[0014] Specifically, it further includes an annular connecting pipe. Each nozzle is connected and installed on the annular connecting pipe, and a connecting pipe passing through the surface of the tank body is provided on the annular connecting pipe.
[0015] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:
[0016] In addition to setting an oil-water separation mechanism inside the oil-water separator, the present utility model also sets a classification wheel at the position of the air outlet. By using the centrifugal force generated by the high-speed rotation of the separation wheel, emulsified liquid particles larger than 1 micron in the ammonia gas of the oil-water separator can be removed, which can effectively improve the purity of the ammonia gas output, is beneficial to the further purification of ammonia gas in the subsequent process, has a simple equipment structure, and has a high efficiency in removing fine particles of emulsified liquid, and has a good application prospect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is the overall structural schematic diagram of the oil-water separator provided by the embodiment of the present utility model;
[0018] Figure 2 is the side view of the oil-water separator provided by the embodiment of the present utility model;
[0019] Figure 3 is the present utility model Figure 2 The cross-sectional view of the oil-water separator provided by the embodiment in the A-A direction;
[0020] Figure 4 is the front view of the oil-water separator provided by the embodiment of the present utility model;
[0021] Figure 5 is the present utility model Figure 4 sectional view of the oil-water separator provided by the embodiment in the B-B direction;
[0022] Reference numerals: 1, tank body; 2, intake pipeline; 3, outlet pipeline; 4, filtering assembly; 5, grading wheel; 6, oil outlet pipe; 7, drain pipe; 8, umbrella-shaped plate; 9, liquid level sensor; 10, hydrophobic oleophilic membrane; 11, nozzle; 12, annular communicating pipe. Detailed implementation manners
[0023] The present utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and cannot be used to limit the protection scope of the present utility model.
[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.
[0025] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations. Embodiment
[0026] An oil-water separator for preparing pure ammonia provided by an embodiment of the present utility model is used to remove, at one time, the emulsified liquid particles with a particle size greater than 1 μm entrained in ammonia during the oil-water separation of ammonia. It can effectively simplify the complex means for further purification of ammonia in the subsequent process, has a good efficiency in removing emulsified liquid particles, and has a good application prospect. In order to achieve the good separation effect of the separator, the separator is provided with a tank body 1, an intake pipeline 2 and an outlet pipeline 3 are connected to the tank body 1 for introducing the ammonia to be treated and discharging the relatively clean ammonia respectively, and an oil-water separation pipeline is arranged inside the tank body 1. The oil-water separation pipeline is used to discharge the oil stains and liquid entrained in the ammonia to prevent the accumulation of liquid in the tank body 1. In order to prevent some impurity particles from being entrained when the ammonia is discharged, a filtering component 4 can be arranged at the position of the intake port of the outlet pipeline 3 inside the tank body 1. The filtering component 4 can also be used for the ammonia to impact its surface when passing through quickly, so that the liquid entrained in the ammonia contacts the wall surface of the filtering component 4 further, thereby improving the adsorption effect on the liquid. In order to ensure the function of the filtering component 4, the filtering component 4 covers the intake port of the outlet pipeline 3 and forms an outlet chamber inside the tank body 1. Finally, a grading wheel 5 is rotatably arranged inside the outlet chamber, a driving component for driving the grading wheel 5 to rotate is arranged outside the tank body 1, and the intake port of the outlet pipeline 3 is communicated with the outlet passage of the grading wheel 5. It should be noted that when the outlet pipeline 3 is communicated with the outlet of the grading wheel 5, it is not directly communicated with the outlet chamber. At this time, driving the grading wheel 5 to rotate at a high speed can make the emulsified liquid particles carried by the ammonia about to be discharged from the outlet pipeline 3 be thrown to the edge. The thrown particles can directly impact on the inner surface of the filtering component 4 or return to the inside of the tank body 1 for reprocessing. The setting of the grading wheel 5 can effectively make the emulsified liquid particles with a particle size greater than 1 micron be adsorbed or settle, which can greatly improve the purity of the ammonia produced and has a good application prospect.
[0027] An oil-water separator for preparing pure ammonia gas provided by an embodiment of the present utility model specifically provides an oil-water separation pipeline for separately separating oil and water. Specifically, an oil outlet pipe 6 and a drain pipe 7 are respectively connected and arranged at the bottom of the tank body 1. Since the density of the oil liquid is lighter than that of water when treating ammonia gas, the oil liquid will float above the water body. In order to distinguish and discharge the corresponding oil body and water body, the position height of the liquid inlet of the oil outlet pipe 6 can be set higher than the position height of the liquid inlet of the drain pipe 7. To avoid discharging the water body while discharging the oil body, resulting in difficult waste treatment, preferably, a hydrophobic and oleophilic membrane 10 is provided inside the oil outlet pipe 6 and near the liquid inlet. Specifically, the hydrophobic and oleophilic membrane 10 covers the cross-section of the oil outlet pipe 6. The hydrophobic and oleophilic membrane 10 is used to intercept the water body, and the oil body can be separately discharged through the permeation of the oil liquid through the membrane. Specifically, the hydrophobic and oleophilic membrane 10 is one of polyvinylidene fluoride, polytetrafluoroethylene, polypropylene, polyethylene, silicon-based material membrane, and nanofiber membrane to achieve the above technical effects.
[0028] An oil-water separator for preparing pure ammonia gas provided by an embodiment of the present utility model. To avoid the situation where the oil liquid may be discharged from the lower drain pipe 7 along with the water body when the water body is discharged and the oil liquid above is not completely discharged, to avoid this situation, a certain margin can be reserved in the tank body 1 during drainage to ensure that the oil liquid will not be discharged from the wrong pipeline. For this purpose, a liquid level sensor 9 can be provided on the tank body 1 and below the liquid inlet of the oil outlet pipe 6. When the liquid level sensor 9 does not detect liquid, it means that the liquid margin has dropped below this position, and the action of continuing to drain sewage can be interrupted. In this way, it can be ensured that only the preset type of liquid can be discharged from the oil outlet pipe 6 or the drain pipe 7.
[0029] An oil-water separator for preparing pure ammonia gas provided by an embodiment of the present utility model. To improve the interception effect of the filtering component 4, the filtering component 4 can be set to be in a cylindrical shape as a whole, and a trapping mesh opening for trapping fine particles can be provided on the surface of the filtering component 4. Or the filtering component 4 can also be a metal mesh arranged densely, and the metal mesh needs to be formed into a tubular shape without obvious openings and cooperate with the tank body 1.
[0030] An oil-water separator for preparing pure ammonia gas provided by an embodiment of the present utility model. In order to quickly settle the liquid carried by the ammonia gas, the intake pipe 2 can be set in an L shape. An umbrella-shaped plate 8 is provided inside the tank body 1, and the air outlet of the intake pipe 2 points to the top surface of the umbrella-shaped plate 8. By using the impact effect, the liquid component with a higher mass in the ammonia gas is separated from the ammonia gas itself, so as to realize the separation of the liquid component; as another implementation manner, the tank body 1 can also be set to be cylindrical as a whole, and the blowing direction of the intake pipe 2 is tangent to the inner wall of the tank body 1. At this time, when ammonia gas is introduced at a high speed, the centrifugal force will separate the liquid component carried therein from the ammonia gas, so that the separated ammonia gas can be discharged and collected from the position of the air outlet pipe 3.
[0031] An oil-water separator for preparing pure ammonia gas provided by an embodiment of the present utility model. Considering that when ammonia gas containing an emulsion component passes through the grading wheel 5, smaller emulsion particles are likely to adhere to the surface of the grading wheel 5, thus affecting the filtering performance of the grading wheel 5. In order to improve the service life of the grading wheel, a number of nozzles 11 can be installed on the filtering component 4, and each nozzle 11 points to the position of the grading wheel 5. By spraying a cleaning liquid on the surface of the grading wheel 5, and the impact contact with the cleaning liquid can be realized by using the idling rotation of the separation wheel 5, so as to clean the surface of the grading wheel 5. The nozzles 11 can also be cleaned by spraying at high pressure, and the specific means are not limited here.
[0032] An oil-water separator for preparing pure ammonia gas provided by an embodiment of the present utility model. In order to facilitate the simultaneous control of a number of nozzles 11, it is provided that the device further includes an annular communication pipe 12. Specifically, each nozzle 11 can be connected and installed on the annular communication pipe 12, and a connecting pipe passing through the surface of the tank body 1 is provided on the annular communication pipe 12. By supplying the cleaning liquid to the connecting pipe, the cleaning liquid to be sprayed can be simultaneously supplied to a number of nozzles 11, thus simplifying the control mode of the nozzles 11.
[0033] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present utility model.
Claims
1. An oil-water separator for preparing pure ammonia gas, characterized in that, It includes a tank body (1), an air inlet pipe (2) and an air outlet pipe (3) are connected to the tank body (1). An oil-water separation pipe is arranged inside the tank body (1). A filtering component (4) is arranged inside the tank body (1) at the position of the air inlet of the air outlet pipe (3). The filtering component (4) covers the air inlet of the air outlet pipe (3) and forms an air outlet chamber inside the tank body (1). A grading wheel (5) is rotatably arranged inside the air outlet chamber. A driving component for driving the grading wheel (5) to rotate is arranged outside the tank body (1). The air inlet of the air outlet pipe (3) is communicated with the air outlet passage of the grading wheel (5).
2. The oil-water separator for preparing pure ammonia gas according to claim 1, wherein An oil outlet pipe (6) and a drain pipe (7) are respectively and connectedly arranged at the bottom of the tank body (1). The height of the liquid inlet of the oil outlet pipe (6) is higher than the height of the liquid inlet of the drain pipe (7).
3. An oil-water separator for preparing pure ammonia according to claim 2, characterized in that, A liquid level sensor (9) is arranged on the tank body (1) and below the liquid inlet of the oil outlet pipe (6).
4. An oil-water separator for preparing pure ammonia gas according to claim 2, characterized in that, A hydrophobic and oleophilic membrane (10) is arranged inside the oil outlet pipe (6) and near the liquid inlet. The hydrophobic and oleophilic membrane (10) covers the cross section of the oil outlet pipe (6). The hydrophobic and oleophilic membrane (10) is one of polyvinylidene fluoride, polytetrafluoroethylene, polypropylene, polyethylene, silicon-based material membrane, nanofiber membrane.
5. An oil-water separator for preparing pure ammonia gas according to claim 1, characterized in that, The filtering component (4) is integrally cylindrical, and a trapping mesh opening for trapping fine particles is arranged on the surface of the filtering component (4).
6. An oil-water separator for preparing pure ammonia gas according to claim 1, characterized in that, The air inlet pipe (2) is L-shaped. An umbrella-shaped plate (8) is arranged inside the tank body (1). The air outlet of the air inlet pipe (2) points to the top surface of the umbrella-shaped plate (8).
7. An oil-water separator for preparing pure ammonia gas according to claim 1, characterized in that, The tank body (1) is integrally cylindrical. The blowing direction of the air inlet pipe (2) is tangent to the inner wall of the tank body (1).
8. An oil-water separator for preparing pure ammonia gas according to claim 1, characterized in that, The filtering component (4) is a densely arranged metal mesh.
9. An oil-water separator for preparing pure ammonia gas according to claim 1, characterized in that, A plurality of nozzles (11) are installed on the filtering component (4), and each nozzle (11) points to the position of the grading wheel (5).
10. An oil-water separator for preparing pure ammonia according to claim 9, characterized in that, It further includes an annular connecting pipe (12). Each nozzle (11) is connected and installed on the annular connecting pipe (12). A connecting pipe passing through the surface of the tank body (1) is arranged on the annular connecting pipe (12).