A continuous industrial liquid separation device

Abstract

The utility model discloses an industrial continuous liquid separation device, including liquid collection jar, the liquid collection jar is sealed hollow structure, and the top of liquid collection jar is equipped with liquid inlet, and the bottom is equipped with liquid outlet, and the upper portion of lateral wall is equipped with upper layer liquid overflow port, the liquid inlet of liquid collection jar is connected with the liquid outlet of condenser, and the liquid outlet of liquid collection jar is connected with the lower layer liquid outflow pipe, be equipped with one inverted U shape bending on the lower layer liquid outflow pipe, the U shape bottom of inverted U shape bending is connected with condenser through gas phase balance pipe, the utility model discloses simple structure and appearance, do not change the conventional equipment appearance, do not have the increase new equipment, can continuously realize the separation of two immiscible liquids, and the processing liquid separation volume is big, and the operation is simple and convenient, fast and efficient, satisfies the industrial production requirement.

Description

Technical Field

[0001] This utility model relates to a liquid separation device, specifically an industrial device capable of continuous liquid separation. Background Technology

[0002] Separating two immiscible substances is a routine and common operation. In industrial production, water often appears as a product, requiring separation from the solvent, especially with esters, benzenes, ketones, and alkanes, which share a common characteristic: azeotropic but immiscible. Often, separation is performed after azeotropic separation, frequently an intermittent operation requiring constant monitoring of interface changes. Difficulty in distinguishing the interface and failure to stop operation promptly often lead to impurities in the liquid, severely impacting efficiency and economic benefits. Utility Model Content

[0003] To address the shortcomings of current azeotropic substance separation methods, this invention provides an industrial continuous liquid separation device. This device utilizes the immiscibility and density difference between the two azeotropic substances to continuously separate them, improving separation efficiency and saving manual operation.

[0004] To solve the above problems, the present invention adopts the following technical solution: An industrial continuous liquid separation device includes a liquid collection tank, which is a sealed hollow structure. The liquid collection tank has an inlet at the top, an outlet at the bottom, and an upper liquid overflow outlet on the upper side wall. The inlet of the liquid collection tank is connected to the outlet of a condenser, and the outlet of the liquid collection tank is connected to a lower liquid outflow pipe. The lower liquid outflow pipe has an inverted U-shaped bend, and the bottom of the U-shape of the inverted U-shape is connected to the condenser through a gas phase balance pipe.

[0005] Furthermore, the liquid collection tank is used to contain two immiscible liquids, which separate into layers within the tank, forming a separation interface. The overflow port of the upper liquid layer and the highest point of the inverted U-shaped bend are both above the liquid separation interface.

[0006] Furthermore, if we define the height difference between the upper liquid overflow port and the layering interface as h1, and the height difference between the highest point of the inverted U-shaped bend and the layering interface as h2, then h1 > h2 > 0.

[0007] Furthermore, the inverted U-shaped bend forms an inverted U shape, with the bottom of the U-shape (i.e., the bend section) being a flat surface.

[0008] Furthermore, the inlet of the liquid collection tank is connected to the outlet of the condenser via a flexible hose. Preferably, the flexible hose is inserted into the liquid collection tank through the outlet, and the outlet of the flexible hose is preferably located at the stratification interface to facilitate better stratification.

[0009] Furthermore, the telescopic hose is equipped with a sight glass.

[0010] Furthermore, the upper liquid overflow port is connected to the upper liquid outflow pipe, and the upper liquid outflow pipe is equipped with valve a.

[0011] Furthermore, a valve b is provided on the lower liquid outlet pipe, and a branch is provided on the lower liquid outlet pipe between valve b and the outlet, with a valve c provided on the branch.

[0012] The advantages of this utility model are: 1. This utility model can continuously separate two immiscible liquids, with a large liquid separation capacity, meeting the requirements of industrial production.

[0013] 2. This utility model has a simple structure and appearance, and is easy to manufacture.

[0014] 3. This utility model does not change the conventional appearance of the equipment, nor does it add any new equipment. It is simple, convenient, fast and efficient to operate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram, 1. Liquid collection tank, 2. Liquid 1, 3. Liquid 2, 4. Layer interface, 5. Condenser, 6. Inverted U-shaped bend, 7. Gas phase balance pipe, 8. Telescopic hose, 9. Valve a, 10. Valve b, 11. Valve c, 12. Sight glass. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement of the components in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indicator will also change accordingly. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present utility model.

[0018] Example 1 like Figure 1 As shown, this is an industrial continuous liquid separation device of the present invention. The device includes a liquid collection tank 1, a lower liquid outlet pipe, and a gas phase balance pipe 7. The liquid collection tank is a sealed hollow structure used to contain immiscible liquid 1 (upper light phase) and liquid 2 (lower heavy phase). Liquid 1 and liquid 2 gradually separate into layers in the liquid collection tank as the storage time increases, forming a clear layer interface 4. The liquid collection tank has an inlet at the top, an outlet at the bottom, and an upper liquid overflow port on the upper side wall. The inlet of the liquid collection tank is connected to the outlet of the condenser 5 to introduce the liquid mixture condensed in the condenser into the liquid collection tank. The upper liquid overflow port is connected to the upper liquid outlet pipe to discharge the separated upper light phase liquid 1. A valve a 9 is provided on the upper liquid outlet pipe. The outlet of the liquid collection tank is connected to the lower liquid outlet pipe for discharging the separated lower heavy phase liquid 2. A valve b 10 is installed on the lower liquid outlet pipe. A branch is located on the lower liquid outlet pipe between valve b and the outlet, and a valve c 11 is installed on the branch. The lower liquid outlet pipe has an inverted U-shaped bend 6, which includes two straight pipe sections and one bent pipe section. The straight pipe sections are parallel to the liquid collection tank, and the bottom of the U-shaped bend (i.e., the bent pipe section) is flat, meaning the bent pipe section is also straight. A tee is connected to the bottom of the inverted U-shaped bend (i.e., the bent pipe section). One opening of the tee is connected to a gas phase balance pipe 7, and the other end of the gas phase balance pipe is connected to a condenser. The gas phase balance pipe is used to balance the pipeline pressure and prevent a siphon effect.

[0019] Furthermore, the opening height of the upper liquid overflow outlet is higher than the highest point of the inverted U-shaped bend, and both heights are higher than the separation interface between the two liquids. The height difference between the upper liquid overflow outlet and the separation interface is defined as h1, and the height difference between the highest point of the inverted U-shaped bend and the separation interface is defined as h2. The pressure in the lower liquid outlet pipe is the same as the pressure in the two straight sections of the U-shaped bend, and the density of liquid 1 is ρ. 液体1 less than the density ρ of the liquid 液体2 According to the formula ρ 液体1 gh1=ρ 液体2 It can be determined that h1 > h2 > 0.

[0020] Furthermore, the inlet of the liquid collection tank and the outlet of the condenser are preferably connected via a flexible hose 8. This is based on the liquid density calculation formula ρ. 液体1 gh1=ρ 液体2 gh2 can determine the location of the liquid separation interface. By appropriately adjusting the position of the hose so that the hose outlet is at the liquid separation interface, better liquid separation can be promoted.

[0021] Furthermore, a sight glass 12 is provided on the telescopic hose to facilitate observation of whether liquid is flowing out of the condenser.

[0022] Furthermore, the bottom of the liquid collection tank has a conical structure, which facilitates better separation of the liquid remaining in the tank after continuous separation is completed.

[0023] Example 2 An industrial continuous liquid dispensing device has the same structure as described in Example 1, except that a sight glass is not installed on the telescopic hose.

[0024] Example 3 An industrial continuous liquid separation device has the same structure as described in Example 1, except that the bottom of the liquid collection tank is semi-circular.

[0025] The working process of this industrial continuous liquid separation device is as follows: 1. After condensation in a condenser, the azeotropic liquid enters a liquid collection tank for separation. The denser liquid 2 is in the lower layer, and the less dense liquid 1 is in the upper layer. First, valves a and b are opened, and valve c is closed. As the two liquids continuously enter, they gradually separate into layers, forming a stable interface. Some liquid 2 enters the lower liquid outlet pipe but does not flow out. Over time, the interface and the liquid level in the lower liquid outlet pipe rise. When the total volume of both liquids reaches a certain level, the interface stabilizes and stops moving. When more liquid enters, the liquid level of liquid 1 reaches the upper liquid overflow port and flows out through the upper liquid outlet pipe. Similarly, as more liquid enters, liquid also flows out of the lower liquid outlet pipe. At this point: ρ 液体1 gh1=ρ 液体2 gh2 is in a dynamic equilibrium, with liquid 1 and liquid 2 continuously being separated out.

[0026] 2. In the later stages of distillation, if liquid 2 in the condenser is distilled prematurely, and only liquid 1 flows out of the condenser, the stratification interface remains stable. After liquid 1 enters the liquid collection tank, it will immediately flow out from the upper liquid overflow port. At this time, liquid will still flow out of the upper liquid outlet pipe, but no liquid will flow out of the lower liquid outlet pipe. At this point, an equilibrium ρ exists. 液体1 gh1=ρ 液体2 gh2.

[0027] 3. In the later stages of distillation, if liquid 1 in the condenser is distilled prematurely, and only liquid 2 flows out of the condenser, the stratification interface remains stable. Liquid 2 will immediately flow out of the lower liquid outlet pipe after entering the liquid collection tank. At this time, no liquid flows out of the upper liquid outlet pipe, but liquid flows out of the lower liquid outlet pipe. An equilibrium ρ exists at this point. 液体 1gh1=ρ 液体2 gh2.

[0028] 4. After both liquid 1 and liquid 2 have evaporated completely and no more liquid enters the liquid collection tank from the condenser, close valve b and open valve c to drain liquid 2 from the branch. After liquid 2 has been drained, replace the receiving container and drain liquid 1 from the branch.

[0029] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An industrial continuous liquid separation device, characterized in that: include: A liquid collection tank is a sealed hollow structure. The liquid collection tank has an inlet at the top, an outlet at the bottom, and an upper liquid overflow outlet on the upper side wall. The inlet of the liquid collection tank is connected to the outlet of the condenser, and the outlet of the liquid collection tank is connected to a lower liquid outflow pipe. The lower liquid outflow pipe has an inverted U-shaped bend, and the bottom of the U-shape of the inverted U-shape is connected to the condenser through a gas phase balance pipe.

2. The industrial continuous liquid separator according to claim 1, characterized in that: The liquid collection tank is used to hold two immiscible liquids. The overflow port of the upper liquid and the highest point of the inverted U-shaped bend are both above the liquid separation interface.

3. The industrial continuous liquid separator according to claim 2, characterized in that: the upper layer The height difference between the liquid overflow outlet and the layered interface is h1, and the height difference between the highest point of the inverted U-shaped bend and the layered interface is h2, where h1 > h2 > 0.

4. The industrial continuous liquid separator according to claim 1, 2 or 3, characterized in that: The bottom of the inverted U-shaped bend is flat.

5. The industrial continuous liquid separator according to claim 1, characterized in that: The inlet of the liquid collection tank is connected to the outlet of the condenser via a flexible hose.

6. The industrial continuous liquid separator according to claim 2, characterized in that: The inlet of the liquid collection tank is connected to the outlet of the condenser via a flexible hose.

7. The industrial continuous liquid separator according to claim 6, characterized in that: The flexible hose extends to the liquid separation interface.

8. The industrial continuous liquid separator according to claim 5, 6 or 7, characterized in that: The flexible hose is equipped with a sight glass.

9. The industrial continuous liquid separator according to claim 1, characterized in that: The upper liquid overflow port is connected to the upper liquid outflow pipe, and the upper liquid outflow pipe is equipped with valve a.

10. The industrial continuous liquid separator according to claim 1, characterized in that: A valve b is installed on the lower liquid outlet pipe, and a branch is installed on the lower liquid outlet pipe between valve b and the outlet, with a valve c installed on the branch.

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