T-shaped feeding structure for separating gas-liquid two-phase mixed flow into tower body
By adopting a T-type feed structure in the gas-liquid two-phase mixed flow tower and using density differences for gas-liquid separation, the problems of unstable flow of gas-liquid and equipment complexity are solved, and the effects of stable diverting and cost reduction are achieved.
Patent Information
- Application Number
- CN202420680628.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-04-03
AI Technical Summary
In the prior art, when the gas-liquid two-phase mixed flow enters the liquid distributor through a vertically bent bent pipe, the flow is unstable, which may lead to damage to the liquid distributor. Setting up the gas-liquid separator in front of the tower will increase process cost and system complexity.
The T-type feed structure is adopted, including a gas-liquid mixed-phase feed pipe and a gas-liquid separation pipe. The gas-liquid mixed-phase feed pipe penetrates the tower body and communicates with the middle part of the gas-liquid separation pipe to form a T-type structure, and gas-liquid separation is carried out by density differences to avoid entering the distributor directly through the bent pipe.
The stable divergence of the gas-liquid two-phase mixed flow is achieved, which avoids impact damage from the liquid distributor and reduces equipment complexity and process costs.
Smart Images
Figure CN222752766U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gas-liquid separation, and in particular relates to a T-shaped feeding structure for a gas-liquid two-phase mixed flow tower body. Background Art
[0002] Towers for gas-liquid separation are commonly used in chemical processes. Currently, there are two ways for the gas-liquid two-phase mixed flow to enter the tower body: (1) Direct entry into the tower: a horizontal gas-liquid mixed phase feed pipe is set, and after entering the tower body, the feed pipe is bent vertically downward so that the gas-liquid mixed phase enters the liquid distributor. (2) A gas-liquid separator is set in front of the tower body so that the gas-liquid mixed phase is separated before entering the tower body, and the liquid phase enters the liquid distributor inside the tower body alone.
[0003] However, the above method has the following problems: (1) When the gas-liquid two-phase mixed flow enters the liquid distributor through a vertically downward bent pipe, the flow state is unstable due to the presence of gas phase in the gas-liquid two-phase mixed flow. In particular, when there is a large amount of gas phase material, the gas-liquid two-phase mixed flow will produce violent turbulence, which may impact the liquid distributor. Long-term impact may cause damage to the liquid distributor. At the same time, since the separation interface of the gas-liquid two-phase is located on the surface of the liquid distributor, the liquid level on the surface of the liquid distributor may fluctuate, thereby affecting the distribution efficiency. (2) If a gas-liquid separator is installed in front of the tower body, an additional gas-liquid separator needs to be added, which increases the process cost and the complexity of the system. In order to solve the above problems, it is urgent to provide a feeding structure for a gas-liquid two-phase mixed flow tower body. Utility Model Content
[0004] The utility model aims to solve the deficiencies in the prior art and provide a T-shaped feeding structure for a gas-liquid two-phase mixed flow tower body.
[0005] The specific technical solutions adopted by this utility model are as follows:
[0006] The utility model provides a T-shaped feeding structure for separating a gas-liquid two-phase mixed flow entering a tower body, comprising a gas-liquid mixed phase feeding pipe and a gas-liquid separation pipe; the gas-liquid mixed phase feeding pipe is arranged through the tower body, one end of the gas-liquid mixed phase feeding pipe is communicated with the outside of the tower body, and is used to receive the gas-liquid two-phase mixed flow; the other end of the gas-liquid mixed phase feeding pipe is located inside the tower body, and is communicated with the middle part of the gas-liquid separation pipe; the gas-liquid mixed phase feeding pipe is arranged perpendicular to the gas-liquid separation structure to form a T-shaped feeding structure; the upper part of the gas-liquid separation pipe is a gas phase pipe for discharging the separated gas phase, and the lower part is a liquid phase pipe for discharging the separated liquid phase; a liquid distributor is arranged below the outlet of the liquid phase pipe.
[0007] Preferably, the material of the gas-liquid mixed phase feed pipe and the gas-liquid separation pipe is selected from aluminum or steel according to the specific composition of the gas-liquid two-phase mixed flow medium.
[0008] Preferably, the ratio of the diameters of the gas phase pipe and the gas-liquid mixed phase feed pipe is (1-2.5):1.
[0009] Preferably, the ratio of the diameter of the liquid phase pipe to the diameter of the gas-liquid mixed phase feed pipe is 1:(1-2).
[0010] Preferably, the tower body is a device for separating gas and liquid phases.
[0011] Furthermore, the tower body is a packed tower or a sieve plate tower.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] By adopting the T-shaped feeding structure provided by the utility model, the gas-liquid phase in the gas-liquid two-phase mixed flow is separated, so that the liquid phase flow flowing into the distributor is stable. The problem that the gas-liquid two-phase flow directly enters the liquid phase distributor in the tower body through the downward curved pipe and causes impact on the liquid phase distributor is overcome. In addition, by adopting the T-shaped feeding structure provided by the utility model, there is no need to add a gas-liquid separator before entering the tower body, which reduces equipment, simplifies the overall structure, and reduces process costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A schematic diagram of a T-shaped feeding structure provided in this embodiment;
[0015] In the figure: tower body 1, gas-liquid mixed phase feeding structure 201, gas-liquid separation structure 202, liquid distributor 3. DETAILED DESCRIPTION
[0016] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed below. The technical features in each embodiment of the utility model can be combined accordingly without conflicting with each other.
[0017] In the prior art, a vertically downward bent pipe is often used to separate a gas-liquid two-phase mixed flow. However, due to the presence of a gas phase in the gas-liquid two-phase mixed flow, its flow state is unstable. In particular, when there is a large amount of gas phase material, the gas-liquid two-phase mixed flow will produce violent turbulence, which may impact the liquid distributor, and long-term impact may cause damage to the liquid distributor. At the same time, since the separation interface of the gas-liquid two-phase is located on the surface of the liquid distributor, the liquid level on the surface of the liquid distributor may fluctuate, thereby affecting the distribution efficiency. However, if a gas-liquid separator is installed in front of the tower body, an additional gas-liquid separator needs to be added, which increases the process cost and the complexity of the system. In view of the above problems, the utility model provides a T-type feeding structure for a gas-liquid two-phase mixed flow tower body. This structure can avoid the shortcomings of the prior art.
[0018] As a preferred embodiment of the present invention, the T-shaped feed structure for separating the gas-liquid two-phase mixed flow into the tower body provided in this embodiment includes a horizontally arranged gas-liquid mixed phase feed pipe 201 and a vertically arranged gas-liquid separation pipe 202; Figure 1 The gas-liquid mixed phase feed pipe 201 and the gas-liquid separation pipe 202 are connected in the middle part, so that the two form a T-shaped feed structure.
[0019] The gas-liquid mixed phase feed pipe 201 is arranged through the tower body 1, and one end of the gas-liquid mixed phase feed pipe 201 is connected to the outside of the tower body 1 for receiving the gas-liquid two-phase mixed flow. The other end of the gas-liquid mixed phase feed pipe 201 is located inside the tower body 1 and is connected to the middle part of the gas-liquid separation pipe 202.
[0020] The T-shaped feeding structure utilizes the difference in density between the gas and liquid phases. The lower portion of the vertically arranged gas-liquid separation tube 202 is a liquid phase tube for discharging the separated liquid phase, and the upper portion of the gas-liquid separation tube 202 is a gas phase tube for discharging the separated gas phase.
[0021] In order to evenly distribute the liquid into the tower to ensure effective contact and mass transfer of the fluid in the tower, in this embodiment, a liquid distributor 3 is arranged below the outlet of the liquid phase pipe. Effective liquid distribution control helps to maintain the stability and reliability of the tower operation and reduce the impact of system fluctuations or instability on the production process.
[0022] The T-type feed structure realizes the gas-liquid splitting of the gas-liquid two-phase mixed flow, so that only the liquid phase enters the liquid distributor 3 in the tower body 1. The flow of the liquid phase is more stable, which can reduce the impact and thus reduce the possibility of damaging the structure of the liquid distributor 3. When the proportion of the gas phase in the gas-liquid two-phase mixed flow is large, the T-type feed structure has significant advantages.
[0023] In this embodiment, the ratio of the diameter of the gas phase pipe to the gas-liquid mixed phase feed pipe 201 is related to the specific gravity of the gas phase in the gas-liquid two-phase mixed flow, and the specific ratio can be calculated by gravity separation. In order to ensure the efficiency of gas-liquid separation, the ratio of the diameter of the gas phase pipe to the gas-liquid mixed phase feed pipe 201 can be selected within the range of (1 to 2.5):1.
[0024] Since the surface space of the liquid distributor 3 is limited, the diameter of the liquid phase pipe can be reduced according to the actual situation. The ratio of the diameter of the liquid phase pipe to the gas-liquid mixed phase feed pipe 201 can be calculated based on the proportion of the liquid phase in the gas-liquid two-phase mixed flow. In this embodiment, the ratio of the diameter of the liquid phase pipe to the gas-liquid mixed phase feed pipe 201 can be selected within the range of 1: (1 to 2).
[0025] In this embodiment, the material of the gas-liquid mixed phase feeding pipe 201 and the gas-liquid separation pipe 202 is selected according to the specific composition of the gas-liquid two-phase mixed flow medium introduced, and generally aluminum or steel is used.
[0026] The T-shaped feed structure provided by the utility model can be arranged in any equipment that needs to perform gas-liquid separation. The utility model does not limit the type of tower body and can be used for a packed tower or a sieve plate tower, etc.
[0027] By adopting the T-shaped feeding structure provided by the utility model, the gas-liquid phase in the gas-liquid two-phase mixed flow is separated, so that the liquid phase flow flowing into the distributor is stable. The problem that the gas-liquid two-phase flow directly enters the liquid phase distributor in the tower body through the downward curved pipe and causes impact on the liquid phase distributor is overcome. In addition, by adopting the T-shaped feeding structure provided by the utility model, there is no need to add a gas-liquid separator before entering the tower body, which reduces equipment, simplifies the overall structure, and reduces process costs.
[0028] The above-described embodiment is only a preferred solution of the utility model, but it is not intended to limit the utility model. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.
Claims
1. A T-shaped feeding structure for separating a gas-liquid two-phase mixed flow into a tower body, characterized in that: It comprises a gas-liquid mixed phase feeding pipe (201) and a gas-liquid separation structure (202); The gas-liquid mixed phase feed pipe (201) is arranged on the tower body (1) through, and one end of the gas-liquid mixed phase feed pipe (201) is connected to the outside of the tower body (1) for receiving the gas-liquid two-phase mixed flow; the other end of the gas-liquid mixed phase feed pipe (201) is located inside the tower body (1) and is connected to the middle part of the gas-liquid separation structure (202); the gas-liquid mixed phase feed pipe (201) is arranged perpendicular to the gas-liquid separation structure (202) to form a T-shaped feed structure; the upper part of the gas-liquid separation structure (202) is a gas phase pipe for discharging the separated gas phase, and the lower part is a liquid phase pipe for discharging the separated liquid phase; a liquid distributor (3) is provided below the outlet of the liquid phase pipe.
2. The T-shaped feeding structure for separating the gas-liquid two-phase mixed flow into the tower body according to claim 1, characterized in that: The material of the gas-liquid mixed phase feed pipe (201) and the gas-liquid separation structure (202) is selected from aluminum or steel according to the specific composition of the gas-liquid two-phase mixed flow medium.
3. The T-shaped feeding structure for separating a gas-liquid two-phase mixed flow into a tower body according to claim 1, characterized in that: The ratio of the diameters of the gas phase pipe and the gas-liquid mixed phase feeding pipe (201) is (1-2.5):
1.
4. The T-shaped feeding structure for separating a gas-liquid two-phase mixed flow into a tower body according to claim 1, characterized in that: The ratio of the diameters of the liquid phase pipe and the gas-liquid mixed phase feed pipe (201) is 1:(1-2).
5. The T-shaped feeding structure for separating a gas-liquid two-phase mixed flow into a tower body according to claim 1, characterized in that: The tower body (1) is a device for separating gas and liquid phases.
6. The T-shaped feeding structure for separating a gas-liquid two-phase mixed flow into a tower body according to claim 5, characterized in that: The tower body (1) is a packed tower or a sieve plate tower.