Different-phase separation device for heterogeneous mixed liquid in continuous reaction
Through structural designs such as layering devices and U-shaped arch bridge pipes, the stable and continuous separation of heterogeneous mixed liquid is achieved by using density differences, which solves the problem of separation of heterogeneous mixed liquid in continuous reactions, improves production efficiency and reduces costs.
Patent Information
- Application Number
- CN202423056302.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-12-11
AI Technical Summary
In continuous reactions, it is difficult to achieve stable and continuous separation of heterogeneous mixed liquids, and prior art such as gravity settlement and centrifugal separation are not effective in production without a standstill period.
The structural design of layering devices, U-shaped arch bridge pipes, constant pressure pipes and other structural designs are adopted to achieve continuous separation of heterogeneous mixed liquid by density differences, adjust the position of the phase separation interface through height differences, and control the outflow with transparent windows and control valves to ensure stable separation of light and heavy components.
It realizes stable and continuous separation of heterogeneous mixed liquid, improves production efficiency, reduces equipment investment and maintenance costs, is suitable for continuous and batch processes, and is suitable for separation of substances that do not come into contact with air and corrosive substances.
Smart Images
Figure CN223248814U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a separation device, in particular to a separation device for heterogeneous mixed liquid in a continuous reaction. Background Art
[0002] Mixed liquid separation is a common and important operation in industrial production processes such as light industry, chemical industry, pharmaceuticals, petroleum, metallurgy, and mining. The level and effectiveness of separation technology directly impact the quality of the final industrial products produced. Mixed liquids are categorized into homogeneous and heterogeneous systems. Homogeneous mixtures lack distinct phase interfaces due to the uniformity of the materials' properties, while heterogeneous mixtures, due to the varying physical properties of the materials, typically produce distinct phase interfaces due to differences in density. For heterogeneous mixtures of varying densities, the most commonly used separation methods are gravity sedimentation and centrifugation.
[0003] With advancements in process technology, more and more production techniques are shifting from batch to continuous processes, significantly improving production efficiency and reducing energy consumption. However, in continuous production processes where there is no sufficient dwell time to allow for phase separation of heterogeneous mixed materials, the key challenge in continuous production processes is how to continuously separate the continuously produced mixed materials. Summary of the Invention
[0004] The purpose of the utility model is to meet the needs of the development of existing technologies and provide a separation device for heterogeneous mixed liquids in continuous reactions that can continuously separate different phase materials in a heterogeneous mixed system and has good separation effect, simple structure, large operational flexibility and good equipment stability.
[0005] The specific technical solutions adopted by this utility model are as follows:
[0006] A device for separating different phases of a heterogeneous mixed liquid in a continuous reaction comprises a stratifier, a feed pipe vertically inserted from the top into the lower portion of the stratifier, a light component discharge port provided at the upper portion of the stratifier, a heavy component discharge port provided at the bottom of the stratifier, a first constant pressure port provided at the upper section of the feed pipe outside the stratifier and a second constant pressure port higher than the first constant pressure port, a horizontal light component discharge pipe connected to the light component discharge port, a horizontal heavy component discharge pipe connected to the heavy component discharge port via a connecting elbow, a U-shaped arch bridge pipe connected to the discharge pipe, a first constant pressure pipe connected between the first constant pressure port and the light component discharge pipe, and a second constant pressure pipe connected between the second constant pressure port and the middle portion of the top end of the U-shaped arch bridge pipe; the top end of the U-shaped arch bridge pipe is lower than the height of the light component discharge pipe; a control valve is provided between two joints on the heavy component discharge pipe connected to the U-shaped arch bridge pipe; a transparent window is provided on the side wall of the stratifier; the light component discharge pipe and the heavy component discharge pipe are connected to a light component receiving tank and a heavy component receiving tank, respectively.
[0007] Furthermore, a sampling port is provided on the light component discharge pipe.
[0008] Furthermore, the feed pipe is a polytetrafluoroethylene lined tube.
[0009] The utility model has at least the following beneficial effects:
[0010] 1. The utility model utilizes the different densities of the components in the heterogeneous mixed liquid and reasonably arranges the stratifier, U-shaped arch bridge tube, first constant pressure tube and second constant pressure tube, so that the heterogeneous mixed liquid enters the lower part of the stratifier through the feed pipe, ensuring that the heterogeneous mixed liquid has sufficient distribution time in the stratifier while maintaining the pressure inside the entire device stable. At the same time, the height difference between the stratifier and the U-shaped arch bridge tube is used to adjust the phase interface position of the light component and the heavy component, thereby achieving stable continuous separation of the heterogeneous mixed liquid.
[0011] 2. The utility model has a simple structure, low equipment investment and maintenance costs, stable equipment operation, and can greatly improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the present utility model. DETAILED DESCRIPTION
[0013] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
[0014] like Figure 1 As shown, a different phase separation device for a heterogeneous mixed liquid in a continuous reaction, the device includes a stratifier 1, a feed pipe 2 vertically inserted into the lower part of the stratifier from the top, a light component discharge port 1a arranged at the upper part of the stratifier, a heavy component discharge port 1b arranged at the bottom of the stratifier, a first constant pressure port 1c and a second constant pressure port 1d arranged at the upper section of the feed pipe outside the stratifier, which is higher than the first constant pressure port, a horizontal light component discharge pipe 3 connected to the light component discharge port 1a, a horizontal heavy component discharge pipe 5 connected to the heavy component discharge port 1b through a connecting elbow 4, a U-shaped arch bridge pipe 6 bridged on the discharge pipe, a first constant pressure pipe 7 connected between the first constant pressure port 1c and the light component discharge pipe 3, and a second constant pressure pipe 8 connected to the second constant pressure port 1d and the middle part of the top end of the U-shaped arch bridge pipe 6. The top height of the U-shaped arch bridge pipe 6 is lower than the height of the light component discharge pipe 4. A pressure difference can be formed by the height difference between the U-shaped arch bridge pipe and the light component discharge pipe. When the liquid level in the stratifier is higher than the bottom (m1) of the top horizontal pipe section of the U-shaped arch bridge pipe, the heavy component will flow out from the heavy component discharge pipe 5 and then flow out to the heavy component receiving tank through the U-shaped arch bridge pipe 6. When the liquid level is lower than m1, it will not flow out. At this time, the light component can have sufficient residence time in the stratifier, ensuring that the light component and the heavy component can flow out from the light component discharge port and the heavy component discharge port respectively. Figure 1 Below the m2 line is the heavy fraction phase. A control valve 9 is provided between the two joints connecting the heavy fraction discharge pipe 5 and the U-shaped arch bridge pipe 6. A transparent window 1e is provided on the side wall of the stratifier 1, allowing a clear view of the phase separation inside the stratifier. A sampling port can be provided on the light fraction discharge port connecting pipe at the top of the stratifier as needed to facilitate sampling and analysis. The light fraction discharge pipe 3 and the heavy fraction discharge pipe 5 are connected to the light fraction receiving tank and the heavy fraction receiving tank, respectively. The feed pipe 2 is a corrosion-resistant PTFE-lined tube.
[0015] The working process of this utility model is as follows:
[0016] The heterogeneous mixed liquid enters the stratifier 1 through the inlet at the top of the feed pipe 2. At this time, the heavy component discharge port 1b at the bottom of the stratifier is closed. The height difference h between the light component discharge pipe 3 and the U-shaped arch bridge pipe is used to adjust the phase separation interface position of the light component and the heavy component. When the heterogeneous mixed liquid is fully stratified in the stratifier and the light component overflows from the light component discharge port 1a, the valve set at the heavy component discharge port is slowly opened according to the flow rate of the heterogeneous mixed liquid, so that the liquid level in the stratifier remains stable to achieve a dynamic balance of inlet and outlet liquids. The feed pipe needs to be inserted below the middle of the stratifier to ensure that the heterogeneous mixed liquid has enough residence time in the stratifier to fully stratify and achieve a good separation effect. The first constant pressure pipe 7 and the second constant pressure pipe 8 are unobstructed to ensure the internal pressure balance of the device, so that the light component can overflow continuously and smoothly, and the heavy component can flow out continuously and smoothly. The control valve 9 under the U-shaped arch bridge pipe is usually in a normally closed state. It is only opened when there are too many heavy components and the heavy component liquid level in the stratifier is too high, so that the heavy component is quickly discharged and then immediately closed.
[0017] The utility model has great operational flexibility and can be used for continuous and intermittent operation processes, separation of substances that cannot come into contact with air in a closed environment, and separation of corrosive substances. Example 1
[0018] The continuous phase-splitting of the mixed solution of 1-n-chlorobutane and water that produces in the synthetic n-propyl chloride process, mixed solution is continuously flowed into the quantizer by feed pipe, because 1-n-chlorobutane density is less than water, mixed solution is divided into two-phase in quantizer, and upper strata is 1-n-chlorobutane, and lower floor is aqueous phase.Along with the mixed solution liquid level raising, the 1-n-chlorobutane on upper strata overflows from the light constituent discharge port, enters the light constituent receiving tank by light constituent discharge pipe 3.Now, slowly open the valve at the heavy constituent discharge port according to the mixed solution flow size that flows into continuously, make the aqueous phase on lower floor slowly and steadily flow out by U-shaped arch bridge pipe, then enter the heavy constituent receiving tank through heavy constituent discharge pipe 5.The valve opening size at the heavy constituent discharge port is adjusted according to the actual liquid level height of two-phase in the quantizer, guarantees that the heavy constituent liquid level height is lower than h3, to reach good separating effect. Example 2
[0019] The continuous phase-splitting of the mixed solution of 1-n-chlorobutane that produces in the synthetic n-propyl chloride process and propyl carbinol, mixed solution is continuously flowed in the quantizer by feed-pipe, because propyl carbinol density is less than 1-n-chlorobutane, mixed solution will be divided into two-phase in quantizer, and upper strata is propyl carbinol, and lower floor is 1-n-chlorobutane.Along with the mixed solution liquid level raising, the propyl carbinol on upper strata overflows from the light constituent overflow port, enters the light constituent receiving tank by the light constituent discharge pipe 3.This moment, slowly open the valve at the heavy constituent discharge port according to the mixed solution flow size that flows into continuously, make the 1-n-chlorobutane of lower floor slowly and steadily flow out by U-shaped arch bridge, then enter the heavy constituent receiving tank through the heavy constituent discharge pipe, to reach good separating effect. Example 3
[0020] The continuous phase separation of the mixed liquor of toluene and water is carried out, and the mixed liquor is continuously flowed into the stratifier through the feed pipe. Since the density of toluene is less than that of water, the mixed liquor will be divided into two phases in the stratifier, with the upper layer being toluene and the lower layer being the aqueous phase. As the mixed liquor level rises, the toluene on the upper layer overflows from the light component discharge port and enters the light component receiving tank through the light component discharge pipe 3. At this time, the valve at the heavy component discharge port is slowly opened according to the flow rate of the mixed liquor that continuously flows in, so that the water on the lower floor slowly and steadily flows out through the U-shaped arch bridge, and then enters the heavy component receiving tank through the heavy component discharge pipe to achieve good separation effect.
Claims
1. A device for separating different phases of a heterogeneous mixed liquid in a continuous reaction, characterized in that: The device comprises a stratifier (1), a feed pipe (2) vertically inserted into the lower part of the stratifier from the top, a light component discharge port (1a) arranged at the upper part of the stratifier, a heavy component discharge port (1b) arranged at the bottom of the stratifier, a first constant pressure port (1c) arranged at the upper section of the feed pipe outside the stratifier and a second constant pressure port (1d) higher than the first constant pressure port, a horizontal light component discharge pipe (3) connected to the light component discharge port (1a), a horizontal heavy component discharge pipe (5) connected to the heavy component discharge port (1b) via a connecting elbow (4), a U-shaped arch bridge pipe (6) connected to the discharge pipe, and a connecting pipe (7). A first constant pressure pipe (7) is connected between the first constant pressure port (1c) and the light component discharge pipe (3), and a second constant pressure pipe (8) is connected between the second constant pressure port (1d) and the middle of the top end of the U-shaped arch bridge pipe (6); the top end of the U-shaped arch bridge pipe (6) is lower than the height of the light component discharge pipe (3); a control valve (9) is provided between two joints on the heavy component discharge pipe (5) connected to the U-shaped arch bridge pipe (6); a transparent window (1e) is provided on the side wall of the stratifier (1); the light component discharge pipe (3) and the heavy component discharge pipe (5) are connected to a light component receiving tank and a heavy component receiving tank, respectively.
2. A different phase separation device for heterogeneous mixed liquid in continuous reaction according to claim 1, characterized in that: A sampling port is provided on the light component discharge pipe (3).
3. A different phase separation device for heterogeneous mixed liquid in continuous reaction according to claim 1 or 2, characterized in that: The feed pipe (2) is a PTFE-lined tube.