A gas phase system micro-liquid collector

Abstract

The utility model discloses a kind of gas phase system trace liquid collectors, belong to gas phase system trace liquid collection field, including pipeline, elbow, collection box, drain pipe, switch structure, inlet one-way valve, outlet one-way valve, activated carbon box.The utility model works, liquid in pipeline is affected by gravity and flows to elbow, then overflow to collection box and is collected, when needing to discharge liquid in collection box, open switch structure, drain pipe discharges liquid in collection box, when discharging, when negative pressure is formed in collection box, external air enters collection box through inlet one-way valve, and then reduce the influence caused by negative pressure in collection box to discharge, when pressure in collection box increases, gas is discharged to activated carbon box by outlet one-way valve, and discharge gas is adsorbed by activated carbon box, prevent harmful gas from being discharged.

Description

Technical Field

[0001] This utility model relates to the field of micro-liquid collection in gas-phase systems, and in particular to a micro-liquid collector for gas-phase systems. Background Technology

[0002] Currently, the production of thiophenol requires a gas-phase reaction system. In the pipelines of the corresponding production system, the gas flowing through the pipelines at the flow meter often contains some residual liquid from the reaction. This residual liquid accumulates at the bottom of the pipeline and may cause blockages. Cleaning up the residual liquid is very inconvenient.

[0003] In the prior art, patent publication number CN203494868U discloses a gas-phase system trace liquid collector, mainly used in the gas-phase reaction system of thiophenol production process. It includes a flow meter and a pipeline located at the flow meter, as well as a collection tank. The bottom end of the pipeline near the flow meter is connected to the top of the collection tank via a valve. This invention, through the collection tank, can conveniently collect and clean residual liquid in the pipeline; the valve is closed before cleaning to avoid disrupting the gas balance in the pipeline; the collected liquid can be easily discharged directly through the drain pipe, and the collection and discharge process can be observed through a sight glass; it has a simple structure, is easy to use, and has low manufacturing cost.

[0004] The above technical solution solves the problems mentioned in the background technology. However, although the above technical solution uses a valve for isolation and then discharge, in actual operation, because the discharge pipe has a relatively small diameter and is located at the bottom, and the collection tank is a closed tank, a negative pressure will be formed in the area above the collection tank when discharging liquid, which will affect the discharge efficiency of the liquid and cause inconvenience. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background art by designing a gas-phase system micro-liquid collector.

[0006] To achieve the above objectives, the technical solution of this utility model is a gas-phase system trace liquid collector, comprising a pipeline, a bend, a collection box, a discharge pipe, a switch structure, an inlet check valve, an outlet check valve, and an activated carbon box. The pipeline is equipped with a bend, and the outer pipe is an arc-shaped tubular structure that bends downward in the middle. The outer end of the bend is connected to the collection box, and the lower end of the collection box is equipped with a discharge pipe. A switch structure is installed on the discharge pipe. The upper end of the collection box is equipped with an inlet check valve and an outlet check valve, which are installed side by side. The upper end of the outlet check valve is connected to the activated carbon box.

[0007] Furthermore, a rotating door is rotatably installed on the upper end of the activated carbon box.

[0008] Furthermore, the switch structure is a solenoid valve.

[0009] Furthermore, a liquid level sensor is installed on the upper end of the collection box.

[0010] Furthermore, the bend diameter is smaller than the pipe diameter, the bend and the pipe are connected by a conversion joint, and a flow meter is installed on the pipe.

[0011] Beneficial effects:

[0012] This invention provides a gas-phase system trace liquid collector with the following advantages: Through its structural design, during operation, the liquid in the pipeline flows into the bend under gravity and then overflows into the collection tank for collection. When it is necessary to discharge the liquid from the collection tank, the switch structure is opened, and the discharge pipe discharges the liquid from the collection tank. During discharge, when a negative pressure is formed inside the collection tank, outside air enters the collection tank through the inlet one-way valve, thereby reducing the impact of the negative pressure inside the collection tank on the discharge. When the pressure inside the collection tank increases, the gas is discharged outward through the outlet one-way valve to the activated carbon box, where the activated carbon box adsorbs the discharged gas, preventing the discharge of harmful gases. Thus, this device solves the problem of inconvenient liquid discharge in existing technologies. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the gas-phase system trace liquid collector described in this utility model;

[0014] Figure 2 This is a side view of the micro-liquid collector for the gas-phase system described in this utility model;

[0015] Figure 3 This is a cross-sectional structural schematic diagram of the gas-phase system trace liquid collector described in this utility model.

[0016] In the diagram, 1 is the pipeline; 2 is the bend; 3 is the collection box; 4 is the discharge pipe; 5 is the inlet check valve; 6 is the outlet check valve; 7 is the activated carbon box; 8 is the rotating door; 9 is the solenoid valve; 10 is the liquid level sensor; 11 is the adapter; and 12 is the flow meter. 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 some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "set / set up," "sleeve," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figure 1-3 This utility model provides a technical solution: a gas phase system trace liquid collector, including a pipeline 1, a bend 2, a collection box 3, a discharge pipe 4, a switch structure, an inlet one-way valve 5, an outlet one-way valve 6, and an activated carbon box 7. The bend 2 is installed on the pipeline 1, and the outer pipe is an arc-shaped tubular structure that bends downward in the middle. The outer end of the bend 2 is connected to the collection box 3. The discharge pipe 4 is installed at the lower end of the collection box 3. The switch structure is installed on the discharge pipe 4. The inlet one-way valve 5 and the outlet one-way valve 6 are installed side by side at the upper end of the collection box 3. The activated carbon box 7 is connected to the upper end of the outlet one-way valve 6.

[0021] In this invention, a rotating door 8 is rotatably installed on the upper end of the activated carbon box 7. When the pressure inside the collection box 3 is greater than the downward pressure of the rotating door 8, the rotating door 8 opens to release the pressure inside the collection box 3, thus preventing excessive pressure from causing exhaust gas to be discharged during abnormal working conditions.

[0022] In this invention, the switch structure is a solenoid valve 9, which facilitates switch control.

[0023] In this invention, a liquid level sensor 10 is installed on the upper end of the collection tank 3. When the liquid level in the collection tank 3 is low during liquid discharge, the liquid level sensor 10 is triggered. At this time, the solenoid valve 9 is closed to prevent gas from being discharged from the discharge pipe 4 after the liquid is completely discharged.

[0024] In this invention, the diameter of the bend 2 is smaller than that of the pipe 1. The bend 2 and the pipe 1 are connected by a conversion joint 11. A flow meter is installed on the pipe 1. The smaller diameter of the bend 2 facilitates the timely formation of a sealing liquid level, forming a liquid seal in the bend 2 to prevent gas in the pipe 1 from directly entering the collection box 3.

[0025] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0026] In this implementation plan:

[0027] During operation, the liquid in pipe 1 flows into bend 2 under gravity and then overflows into collection tank 3 for collection. When it is necessary to discharge the liquid in collection tank 3, the switch structure is opened, and discharge pipe 4 discharges the liquid in collection tank 3. During discharge, when a negative pressure is formed in collection tank 3, outside air enters collection tank 3 through inlet one-way valve 5, thereby reducing the impact of negative pressure in collection tank 3 on discharge. When the pressure in collection tank 3 increases, the gas is discharged outward through outlet one-way valve 6 to activated carbon box 7, where activated carbon box 7 adsorbs the discharged gas to prevent harmful gases from being discharged.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas-phase system trace liquid collector, comprising a pipeline (1), a bend (2), a collection box (3), a discharge pipe (4), a switching structure, an inlet check valve (5), an outlet check valve (6), and an activated carbon box (7), characterized in that, A bend (2) is installed on the pipeline (1). The bend is an arc-shaped tubular structure that bends downward in the middle. A collection box (3) is connected to the outer end of the bend (2). A discharge pipe (4) is installed at the lower end of the collection box (3). A switch structure is installed on the discharge pipe (4). An inlet one-way valve (5) and an outlet one-way valve (6) are installed side by side at the upper end of the collection box (3). An activated carbon box (7) is connected to the upper end of the outlet one-way valve (6).

2. The gas-phase system trace liquid collector according to claim 1, characterized in that, The activated carbon box (7) is rotatably equipped with a rotating door (8) at its upper end.

3. The gas-phase system trace liquid collector according to claim 1, characterized in that, The switching structure is a solenoid valve (9).

4. The gas-phase system trace liquid collector according to claim 3, characterized in that, A liquid level sensor (10) is installed on the upper end of the collection box (3).

5. The gas-phase system trace liquid collector according to claim 1, characterized in that, The diameter of the bend (2) is smaller than that of the pipe (1). The bend (2) and the pipe (1) are connected by a conversion joint (11). A flow meter (12) is installed on the pipe (1).

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