CN108905292B - A temperature-changing oil-water separator and volatile oil extraction system - Google Patents

Abstract

A variable-temperature oil-water separator relates to the field of pharmaceutical equipment, and can cool down an oil-water mixture again after light oil is separated in the process of heavy oil falling, so that the density difference between heavy oil and water is increased, and the separation is easier. The variable-temperature oil-water separator is simple to operate, high in separation efficiency and particularly suitable for volatile oil with light oil and heavy oil. The volatile oil extraction system comprises the variable-temperature oil-water separator, has high separation efficiency on an oil-water mixture, and can improve the yield of volatile oil.

Description

A variable temperature oil-water separator and volatile oil extraction system

Technical field

The invention relates to the field of pharmaceutical equipment, and specifically to a temperature-changing oil-water separator and a volatile oil extraction system.

Background technique

Volatile oil, also known as essential oil, is a volatile oily liquid that exists in plants, can be distilled with water vapor, and is immiscible with water. Most volatile oils have aromatic smell and have various biological activities. Volatile oils are widely distributed in the plant kingdom, and hundreds of plants used in traditional Chinese medicine contain volatile oils. The composition of volatile oil is quite complex. Its basic components are terpenoids, aromatic compounds, aliphatic compounds, etc. Among them, terpenes account for the largest proportion and are mainly monoterpenes, sesquiterpenes and their oxygenated derivatives. Volatile oil is an important substance that produces the effects of traditional Chinese medicine. Studying its extraction and separation is of great significance for the development of new drugs and the promotion of the modernization of traditional Chinese medicine. For a long time, domestic and foreign scholars have conducted a lot of research and exploration on the extraction and separation of volatile oils from traditional Chinese medicine. Although the extraction and separation methods are constantly being improved and improved, most of them are still in the laboratory research stage and cannot be industrialized.

At present, the collection and separation efficiency of the volatile oil collection and separation device matched with the extraction equipment is not high enough. For some medicinal materials, volatile oil cannot even be collected in large-scale production, resulting in low utilization rate of medicinal materials, high energy consumption, high cost and other problems. Volatile oil extraction and separation equipment has been It seriously affects the production and quality of traditional Chinese medicine preparations.

In view of this, this application is filed.

Contents of the invention

The invention provides an oil-water separator, aiming to improve the problem that the existing oil-water separator has an insufficient extraction rate of volatile oil.

The invention also provides a volatile oil extraction system, which has high extraction efficiency of volatile oil.

The embodiment of the present invention is implemented as follows:

A variable temperature oil-water separator, which includes a shell and a separation chamber located in the shell. A light oil separator is provided on the top of the housing, and a heavy oil separator is provided on the bottom; the separation chamber includes a first separation chamber located on the upper part of the housing, And a second separation chamber located at the lower part of the casing; the mixed oil feed pipe extends through the casing into the first separation chamber, and the aqueous phase outlet pipe extends through the casing into the second separation chamber; the outside of the casing corresponds to the second separation chamber A condensation jacket is set in the position of the chamber, and a condensation cavity for condensate to pass is formed between the condensation jacket and the shell.

Furthermore, in other preferred embodiments of the present invention, the condensation chamber is provided with a condensate inlet and a condensate outlet. The condensate inlet is located at the bottom of the condensation chamber, and the condensate outlet is located at the top of the condensation chamber.

Furthermore, in other preferred embodiments of the present invention, the condensation chamber is arranged along the circumference of the casing and surrounds the casing.

Furthermore, in other preferred embodiments of the present invention, the condensation jacket is made of thermal insulation material.

Furthermore, in other preferred embodiments of the present invention, the temperature-variable oil-water separator is also provided with a condensation pipe. The condensation pipe includes a liquid inlet pipe, a spiral pipe and a liquid outlet pipe. The spiral pipe is located in the second separation chamber and surrounds the water phase. A liquid outlet pipe is provided, and the two ends of the spiral tube are respectively connected with the liquid inlet pipe and the liquid outlet pipe, and the liquid inlet pipe and the liquid outlet pipe penetrate the shell.

Furthermore, in other preferred embodiments of the present invention, a respirator for balancing the air pressure in the separation chamber is provided on the top of the housing.

Further, in other preferred embodiments of the present invention, the variable temperature oil-water separator also includes a cyclone separator, which is located in the first separation chamber, and the inlet of the cyclone separator is connected to the mixed oil feed pipe. The top of the cyclone separator is provided with an overflow port, and the bottom is provided with an underflow port.

Further, in other preferred embodiments of the present invention, a swirl chamber is provided in the cyclone separator. The cyclone chamber includes a cylindrical section cyclone chamber located above and a conical section cyclone chamber located below. The inlet of the separator is arranged along the tangential direction of the cylindrical section swirl chamber.

Further, in other preferred embodiments of the present invention, a spoiler is provided below the underflow port, and the spoiler is connected to the casing and spaced apart from the underflow port of the cyclone separator; the spoiler and the casing are There is a liquid gap between them.

A volatile oil extraction system, which includes the above-mentioned variable temperature oil-water separator.

The beneficial effects of the embodiments of the present invention are:

Embodiments of the present invention provide a temperature-variable oil-water separator, which can cool the oil-water mixture again during the descent of heavy oil after light oil is separated, so that the density difference between heavy oil and water becomes larger, making separation easier. The variable temperature oil-water separator is simple to operate and has high separation efficiency, and is especially suitable for volatile oils containing both light oil and heavy oil.

Embodiments of the present invention also provide a volatile oil extraction system, which includes the above-mentioned variable temperature oil-water separator, which has high separation efficiency for oil-water mixtures and can increase the yield of volatile oil.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of a variable temperature oil-water separator provided by the first embodiment of the present invention;

Figure 2 is a schematic diagram of a variable temperature oil-water separator provided by the second embodiment of the present invention;

Figure 3 is a cross-sectional view of a cyclone separator of a variable temperature oil-water separator provided by the second embodiment of the present invention;

Figure 4 is a schematic diagram of a spoiler of a variable temperature oil-water separator provided in the second embodiment of the present invention.

Icon: 100-variable temperature oil-water separator; 110-shell; 111-light oil separator; 112-heavy oil separator; 113-mixed oil feed pipe; 114-water phase outlet pipe; 115-breather; 120- Separation chamber; 121-first separation chamber; 122-second separation chamber; 130-condensation jacket; 131-condensation chamber; 132-condensate inlet; 133-condensate outlet; 140-condensation pipe; 141-liquid inlet pipe; 142-spiral tube; 143-liquid outlet pipe; 150-cyclone separator; 151-inflow port; 152-overflow port; 153-bottom flow port; 154-cyclone chamber; 1541-cylindrical section cyclone chamber; 1542- Conical section swirl chamber; 160-spoiler; 161-liquid clearance; 200-variable temperature oil-water separator.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention. Accordingly, the following detailed description of embodiments of the invention provided in the appended drawings is not intended to limit the scope of the claimed invention, but rather to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The directions indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" etc. or The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention 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 operated in a specific orientation, Therefore, it should not be construed as a limitation of the present invention.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more than two, unless otherwise explicitly and specifically limited.

In the present invention, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise expressly provided and limited, the term "above" or "below" a first feature of a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them. Furthermore, the terms "above", "above" and "above" a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.

First embodiment

This embodiment provides a variable temperature oil-water separator 100, as shown in FIG. 1, which includes a housing 110 and a separation chamber 120 located in the housing 110.

As shown in FIG. 1 , in this embodiment, the housing 110 is cylindrical as a whole. A light oil separator 111 is provided on the top of the housing 110 and a heavy oil separator 112 is provided on the bottom. The separation chamber 120 includes a first separation chamber 121 located at the upper part of the housing 110 and a second separation chamber 122 located at the lower part of the housing 110 . The mixed oil feed pipe extends through the casing 110 into the first separation chamber 121 , and the water phase outlet pipe 114 extends through the casing 110 into the second separation chamber 122 . A condensation sleeve 130 is set outside the shell 110 at a position corresponding to the second separation chamber 122. A condensation cavity 131 for condensate to pass is formed between the condensation sleeve 130 and the shell 110.

The oil-water mixture formed by volatile oil and condensed water enters the first separation chamber 121 through the mixed oil feed pipe. The light oil in the oil-water mixture rises and is collected by the light oil separator 111 located at the top of the first separation chamber 121 . The heavy oil and water sink together into the second separation chamber 122 and are further separated during the sinking process. The separated heavy oil is collected by the heavy oil separator 112 at the bottom of the second separation chamber 122, and the condensed water comes out of the water phase. Liquid pipe 114 drains. However, heavy oil and water have similar densities, so separation takes a long time. In this embodiment, the temperature of heavy oil and water is cooled again during their sinking process, thereby increasing the density difference between heavy oil and water, making them easier to separate. It is worth noting that in this embodiment, there is no real separation between the first separation chamber 121 and the second separation chamber 122. The first separation chamber 121 and the second separation chamber 122 are actually still a complete whole. , the second separation chamber 122 is only functionally distinguished based on its ability to cool down again.

The condensation chamber 131 is provided with a condensate inlet 132 and a condensate outlet 133 . The condensate inlet 132 is located at the bottom of the condensation chamber 131 , and the condensate outlet 133 is located at the top of the condensation chamber 131 . The condensate moves from bottom to top and forms a countercurrent with the mixture of heavy oil and water to achieve the purpose of improving the cooling effect.

The condensation chamber 131 is arranged along the circumference of the casing 110 and surrounds the casing 110 so that the condensate can evenly cool the mixed liquid in the second separation chamber 122 from all directions of the casing 110 and increase the separation effect.

The condensation jacket 130 is made of thermal insulation material. The condensation jacket 130 made of thermal insulation material can prevent cold air from overflowing, allowing better heat transfer between the condensate and the shell 110, and improving the cooling efficiency of the mixed liquid in the second separation chamber 122.

A respirator 115 is provided on the top of the housing 110 . The respirator 115 can be used to balance the air pressure in the separation chamber 120 to avoid poor separation and backflow caused by negative pressure, or liquid spraying and leakage caused by excessive pressure.

Second embodiment

This embodiment provides a temperature-variable oil-water separator 200, as shown in FIG. 2. It is basically the same as the temperature-variable oil-water separator 100 provided in the first embodiment, and the differences are as follows.

In order to further improve the cooling efficiency, as shown in Figure 2, the variable temperature oil-water separator 200 in this embodiment is also provided with a condensation tube 140. The condensation tube 140 includes a liquid inlet pipe 141, a spiral tube 142 and a liquid outlet pipe 143. The spiral tube 142 is located in the second separation chamber 122 and is arranged around the water phase liquid outlet pipe 114. Both ends of the spiral tube 142 are connected with the liquid inlet pipe 141 and the liquid outlet pipe 143 respectively. The liquid inlet pipe 141 and the liquid outlet pipe 143 penetrate the shell. 110. The condensation pipe 140 can extend into the second separation chamber 122 to cool the mixed liquid inside the second separation chamber 122. When used in conjunction with the condensation chamber 131, the cooling efficiency can be greatly increased.

Further, as shown in Figures 2 and 3, in this embodiment, the variable temperature oil-water separator 200 also includes a cyclone separator 150. The cyclone separator 150 is located in the first separation chamber 121. The cyclone separator 150 The inflow port 151 is connected with the mixed oil feed pipe 113. The cyclone separator 150 is provided with an overflow port 152 at the top and an underflow port 153 at the bottom. The cyclone separator 150 can perform preliminary separation of the oil-water mixture. Under the action of centrifugation, the light oil flows out from the overflow port 152 at the top of the cyclone separator 150, while the heavy oil and water flow from the underflow at the bottom of the cyclone separator 150. Mouth 153 flows out.

The cyclone separator 150 is provided with a cyclone chamber 154. The cyclone chamber 154 includes a cylindrical section cyclone chamber 1541 located above and a conical section cyclone chamber 1542 located below. The inlet 151 of the cyclone separator 150 is along the cylinder. The segmented swirl chamber 1541 is arranged in the tangential direction. The oil-water mixture that enters tangentially moves in a spiral shape. After entering the conical section swirl chamber 1542, the liquid rotation speed gradually accelerates as the inner diameter gradually decreases. Since the diameter of the bottom flow port 153 is small, all the liquid cannot be discharged from the bottom flow port 153 . Under such circumstances, heavy oil and water flow out from the bottom flow port 153 along the wall of the swirl chamber 154, and squeeze the light oil upward to the center with lower pressure, and flow out from the overflow port 152, achieving preliminary separation of the light oil.

Further, as shown in Figures 2 and 4, a spoiler 160 is provided below the underflow port 153. The spoiler 160 is connected to the housing 110 and is spaced apart from the underflow port 153 of the cyclone separator 150; spoiler 160 A liquid gap 161 is provided between the plate 160 and the housing 110 . The heavy oil and water flowing out from the underflow port 153 move very fast, and after flowing into the second separation chamber 122, they cannot stay and cool down sufficiently. The arrangement of the spoiler 160 can play a better buffering role. The heavy oil and water impact on the spoiler 160 and are blocked and decelerated, and then flow into the second separation chamber 122 through the liquid gap 161 for full separation. Lower the temperature, thereby improving the separation effect.

This embodiment also provides a volatile oil extraction system, which includes the above-mentioned variable temperature oil-water separator 200. It includes the above-mentioned variable temperature oil-water separator 200, which has high separation efficiency for oil-water mixture and can increase the yield of volatile oil.

To sum up, embodiments of the present invention provide a variable temperature oil-water separator, which can cool down the oil-water mixture again during the descending process of heavy oil after light oil is separated, so that the density difference between heavy oil and water becomes larger. This makes separation easier. The variable temperature oil-water separator is simple to operate and has high separation efficiency, and is especially suitable for volatile oils containing both light oil and heavy oil.

Embodiments of the present invention also provide a volatile oil extraction system, which includes the above-mentioned variable temperature oil-water separator, which has high separation efficiency for oil-water mixtures and can increase the yield of volatile oil.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (6)

1. The temperature-variable oil-water separator is characterized by comprising a shell and a separation chamber positioned in the shell, wherein the top of the shell is provided with a light oil separator, and the bottom of the shell is provided with a heavy oil separator; the separation chamber comprises a first separation chamber positioned at the upper part of the shell and a second separation chamber positioned at the lower part of the shell; the mixed oil feeding pipe penetrates through the shell and stretches into the first separation chamber, and the water phase liquid outlet pipe penetrates through the shell and stretches into the second separation chamber; a condensing sleeve is sleeved at the outer side of the shell corresponding to the position of the second separation chamber, and a condensing cavity for passing condensate is formed between the condensing sleeve and the shell;

the variable-temperature oil-water separator also comprises a cyclone separator, wherein the cyclone separator is positioned in the first separation chamber, an inflow port of the cyclone separator is communicated with the mixed oil feeding pipe, an overflow port is arranged at the top of the cyclone separator, and a bottom flow port is arranged at the bottom of the cyclone separator;

the cyclone separator is internally provided with a cyclone cavity, the cyclone cavity comprises a cylindrical section cyclone cavity positioned above and a conical section cyclone cavity positioned below, and an inflow port of the cyclone separator is arranged along the tangential direction of the cylindrical section cyclone cavity;

a spoiler is arranged below the bottom flow port, connected with the shell and arranged at intervals with the bottom flow port of the cyclone separator; a liquid passing gap is arranged between the spoiler and the shell;

the top of the shell is provided with a respirator for balancing the air pressure in the separation chamber.

2. The variable temperature oil-water separator according to claim 1, wherein the condensation chamber is provided with a condensate inlet and a condensate outlet, the condensate inlet being located at the bottom of the condensation chamber, the condensate outlet being located at the top of the condensation chamber.

3. The temperature change oil-water separator according to claim 2, wherein the condensation chamber is provided along a circumferential direction of the housing and surrounds the housing for one revolution.

4. The temperature change oil-water separator according to claim 2 wherein the condensing jacket is made of a heat insulating material.

5. The variable temperature oil-water separator according to claim 1, further comprising a condenser tube, a spiral tube and a liquid outlet tube, wherein the spiral tube is located in the second separation chamber and is arranged around the water phase liquid outlet tube, two ends of the spiral tube are respectively communicated with the liquid inlet tube and the liquid outlet tube, and the liquid inlet tube and the liquid outlet tube penetrate through the shell.

6. A volatile oil extraction system comprising the variable temperature oil-water separator of any one of claims 1-5.