Light component removal tower

Abstract

The utility model provides a light component removal tower, which relates to the technical field of chemical engineering and comprises a tower body with a liquid inlet pipe, the tower tray is provided with a plurality of liquid distribution holes, is positioned in the tower body and is positioned below the outlet of the liquid inlet pipe; the gas pipe is fixedly arranged between the outlet of the liquid inlet pipe and the tower tray; nozzles are arranged on the lower sides of the air pipes; the accumulated liquid detection mechanism is used for detecting whether accumulated liquid exists on the tower tray or not; the jet device comprises a jet pipe, a partial pressure pipe, a liquid inlet head, a narrow pipe and a diffusion head; one end of the jet pipe is positioned in the narrow pipe, and the other end is connected with an inlet of the liquid inlet pipe; one end of the partial pressure pipe is connected with the jet pipe, and the other end is connected with an inlet of the air pipe; and the partial pressure pipe is provided with an electromagnetic valve. When the accumulated liquid detection mechanism detects that the accumulated liquid phenomenon on the tower tray reaches a preset threshold value, the electromagnetic valve can be opened to carry out flow division and pressure division on the jet pipe, so that the liquid inlet amount at the liquid inlet pipe is reduced, downward airflow is formed above the accumulated liquid level of the tower tray, and the accumulated liquid is promoted to be discharged downwards from the liquid division hole at a higher speed.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical industry, in particular to a lightness removal tower. Background Art

[0002] The structure of the light-removal tower usually includes the tower body, filler, liquid distributor and gas distribution device. The tower body is a vertical cylinder with a filler support plate at the bottom. The filler is placed on the support plate in a random or complete manner. The liquid is sprayed onto the filler from the top of the tower through the liquid distributor and flows down along the surface of the filler. The gas is fed into the tower from the bottom, and after being distributed by the gas distribution device, it continuously passes through the gaps in the filler layer in countercurrent with the liquid. On the surface of the filler, the gas and liquid phases are in close contact for mass transfer.

[0003] There are many liquid separation holes on the tray of the light-removal tower for spraying liquid downwards. When the amount of liquid on the tray is too large, the liquid cannot leak down in time, resulting in the problem of liquid accumulation on the tray. Utility Model Content

[0004] In view of the above situation, the utility model provides a lightness removal tower, aiming to solve the technical problem that when the amount of liquid on the tray of the existing lightness removal tower is too large, the liquid cannot be leaked down in time, causing liquid accumulation on the tray.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a lightness removal tower, comprising:

[0007] A tower body having a liquid inlet pipe;

[0008] A tower plate with a plurality of liquid separation holes is located in the tower body and below the outlet of the liquid inlet pipe;

[0009] The air pipe is fixedly arranged between the outlet of the liquid inlet pipe and the tower plate; the lower side of the air pipe is provided with a nozzle;

[0010] A liquid accumulation detection mechanism is used to detect whether there is liquid accumulation on the tower tray;

[0011] The ejector comprises an ejector tube, a pressure dividing tube, and a liquid inlet head, a narrow tube and a diffusion head which are connected in sequence;

[0012] One end of the narrow tube is connected to the narrow end of the diffuser head;

[0013] One end of the jet tube is located in the narrow tube, and the other end is connected to the inlet of the liquid inlet tube;

[0014] One end of the pressure dividing tube is connected with the jet tube, and the other end is connected with the inlet of the air pipe; the pressure dividing tube is provided with a solenoid valve.

[0015] In some embodiments of the present invention, there are multiple spray heads.

[0016] In some embodiments of the present invention, the plurality of nozzles are evenly distributed.

[0017] In some embodiments of the present invention, the trachea is annular, and the outlet of the liquid inlet pipe is located on the inner side of the trachea.

[0018] In some embodiments of the present invention, one end of the pressure dividing tube is connected to the jet tube via a three-way joint.

[0019] In some embodiments of the present invention, the fluid accumulation detection mechanism includes:

[0020] A fixing rod, longitudinally fixed above the tower plate;

[0021] The top of the floating ball located on the upper side of the tower plate is longitudinally slidably connected to the fixed rod;

[0022] Displacement sensor, used to detect the longitudinal displacement of the float;

[0023] PLC controller, the output end of the displacement sensor is electrically connected to the input end of the PLC controller, and the output end of the PLC controller is electrically connected to the control end of the solenoid valve.

[0024] In some embodiments of the present invention, the bottom of the float ball contacts the upper side of the tower tray.

[0025] In some embodiments of the present invention, the displacement sensor is longitudinally arranged in the float, one end of the displacement sensor is connected to the float, and the other end is connected to the fixing rod.

[0026] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0027] When the liquid accumulation detection mechanism detects that the liquid accumulation on the tower plate has reached a predetermined threshold, it means that the liquid inflow at the liquid inlet pipe is too large. At this time, the solenoid valve can be opened to divert and pressure the jet tube. On the one hand, this can reduce the liquid inflow at the liquid inlet pipe, and on the other hand, it can form a downward airflow above the liquid surface of the tower plate to prompt the accumulated liquid to be discharged downward from the liquid separation hole at a faster speed, thereby alleviating the liquid accumulation on the tower plate.

[0028] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 It is the structural schematic diagram of the lightness removal tower;

[0031] Figure 2 for Figure 1 A partial enlarged view of position A in the middle;

[0032] Figure 3 Schematic diagram of the structure of the ejector.

[0033] icon:

[0034] 1-tower body, 11-liquid inlet pipe,

[0035] 2- tray,

[0036] 3-air pipe, 31-nozzle,

[0037] 4-liquid accumulation detection mechanism, 41-fixed rod, 42-floating ball, 43-displacement sensor,

[0038] 5- ejector, 51- ejector tube, 52- pressure dividing tube, 521- solenoid valve, 53- liquid inlet head, 54- narrow tube, 55- diffusion head. DETAILED DESCRIPTION

[0039] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention.

[0040] In the description of the embodiments of the present invention, it should be understood that the terms "longitudinal", "upper", "lower", "top", "bottom", "inner", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description. They do 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, they cannot be understood as limitations on the embodiments of the present invention.

[0041] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0042] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0043] Example

[0044] See also Figure 1 to Figure 3 This embodiment provides a light-removal tower, including a tower body 1, a tower tray 2, an air pipe 3, a liquid accumulation detection mechanism 4 and an ejector 5.

[0045] The tower body 1 is provided with a liquid inlet pipe 11 .

[0046] The tower tray 2 is located inside the tower body 1 and below the outlet of the liquid inlet pipe 11 . The tower tray 2 has a plurality of liquid separation holes (not shown in the figure).

[0047] The air pipe 3 is fixedly arranged between the outlet of the liquid inlet pipe 11 and the tower plate 2; a plurality of nozzles 31 are evenly distributed on the lower side of the air pipe 3. Specifically, the air pipe 3 is annular, and the outlet of the liquid inlet pipe 11 is located on the inner side of the air pipe 3.

[0048] The liquid accumulation detection mechanism 4 is used to detect whether there is liquid accumulation on the tower tray 2 .

[0049] The ejector 5 uses the Venturi principle to deliver the raw material liquid into the tower body 1 through the liquid inlet pipe 11; the ejector 5 includes an ejector pipe 51, a pressure dividing pipe 52, and a liquid inlet head 53, a narrow tube 54 and a diffusion head 55 connected in sequence.

[0050] One end of the narrow tube 54 is connected to the narrow end of the diffusion head 55 .

[0051] The jet tube 51 is used for ejecting high-speed airflow, one end of which is located in the narrow tube 54 and the other end is connected to the inlet of the liquid inlet tube 11 .

[0052] One end of the pressure dividing tube 52 is connected to the jet tube 51 via a three-way joint (not shown in the figure), and the other end is connected to the inlet of the air pipe 3; the pressure dividing tube 52 is provided with a solenoid valve 521.

[0053] When the liquid accumulation detection mechanism 4 detects that the liquid accumulation on the tower tray 2 has reached a predetermined threshold, it means that the liquid inlet amount at the liquid inlet pipe 11 is too large. At this time, the solenoid valve 521 can be opened to divert and divide the pressure of the jet tube 51. On the one hand, this can reduce the liquid inlet amount at the liquid inlet pipe 11, and on the other hand, it can form a downward airflow above the liquid surface of the tower tray 2 to prompt the accumulated liquid to be discharged downward from the liquid separation hole at a faster speed, thereby alleviating the liquid accumulation on the tower tray 2; after the liquid accumulation on the tower tray 2 is alleviated, the solenoid valve 521 can be closed.

[0054] The liquid accumulation detection mechanism 4 includes a fixing rod 41, a floating ball 42, a displacement sensor 43 and a PLC controller (not shown in the figure).

[0055] The fixing rod 41 is longitudinally fixedly disposed above the tower tray 2 .

[0056] The top of the float ball 42 is longitudinally slidably connected to the fixing rod 41 , and the bottom of the float ball 42 is disposed close to the upper side of the tower tray 2 , or the bottom of the float ball 42 is in contact with the upper side of the tower tray 2 .

[0057] The displacement sensor 43 is used to detect the longitudinal displacement of the float 42. Specifically, the displacement sensor 43 is longitudinally arranged in the float 42, one end of the displacement sensor 43 is connected to the float 42, and the other end is connected to the fixing rod 41.

[0058] The PLC controller is arranged outside the tower body 1 ; the output end of the displacement sensor 43 is electrically connected to the input end of the PLC controller, and the output end of the PLC controller is electrically connected to the control end of the solenoid valve 521 .

[0059] The working principle of the liquid accumulation detection mechanism 4 is: the float 42 will float up under the influence of the accumulated liquid. When the displacement sensor 43 detects that the upward displacement of the float 42 reaches a predetermined threshold, it indicates that the tower plate 2 is seriously accumulated with liquid. The PLC controller then opens the solenoid valve 521 to divert and divide the pressure of the jet tube 51, thereby alleviating the phenomenon of liquid accumulation on the tower plate 2.

[0060] Finally, it should be noted that the above 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 be subject to various modifications and variations. In the absence of conflicts, the embodiments of the present application and the features in the embodiments may be combined with each other at will. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lightness removal tower, characterized in that: include: A tower body having a liquid inlet pipe; A tower plate with a plurality of liquid separation holes is located in the tower body and below the outlet of the liquid inlet pipe; An air pipe is fixedly arranged between the outlet of the liquid inlet pipe and the tower plate; a nozzle is provided on the lower side of the air pipe; A liquid accumulation detection mechanism, used to detect whether there is liquid accumulation on the tower tray; The ejector comprises an ejector tube, a pressure dividing tube, and a liquid inlet head, a narrow tube and a diffusion head which are connected in sequence; One end of the narrow tube is connected to the narrow end of the diffusion head; One end of the jet tube is located in the narrow tube, and the other end is connected to the inlet of the liquid inlet tube; One end of the pressure dividing tube is connected to the jet tube, and the other end is connected to the inlet of the air pipe; the pressure dividing tube is provided with a solenoid valve.

2. The lightness removal tower according to claim 1, characterized in that There are multiple nozzles.

3. The lightness removal tower according to claim 1, characterized in that The plurality of nozzles are evenly distributed.

4. The lightness removal tower according to claim 1, characterized in that The trachea is annular, and the outlet of the liquid inlet pipe is located on the inner side of the trachea.

5. The lightness removal tower according to claim 1, characterized in that: One end of the pressure dividing tube is connected to the jet tube through a three-way joint.

6. The lightness removal tower according to any one of claims 1 to 5, characterized in that: The effusion detection mechanism comprises: A fixing rod, longitudinally fixedly disposed above the tower tray; A floating ball located on the upper side of the tower tray has its top connected to the fixing rod in a longitudinal sliding manner; A displacement sensor, used for detecting the longitudinal displacement of the float; PLC controller, the output end of the displacement sensor is electrically connected to the input end of the PLC controller, and the output end of the PLC controller is electrically connected to the control end of the solenoid valve.

7. The lightness removal tower according to claim 6, characterized in that The bottom of the float ball contacts the upper side of the tray.

8. The lightness removal tower according to claim 6, characterized in that: The displacement sensor is longitudinally arranged in the float, one end of the displacement sensor is connected to the float, and the other end is connected to the fixing rod.

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